A compound adjective is an adjective built from two or more words that modify a single noun together, as in a well-known author. Compound adjective example sentences range from ice-cold lemonade to five-star hotels, and each pair locks two words into one hyphenated modifier.
What Is a Compound Adjective?
A compound adjective joins two or more words into one description that neither word delivers alone. A regular adjective uses one word such as "tall" or "red," while a compound adjective fuses at least two into a hyphenated modifier: "red-hot," "old-fashioned," "out-of-date."
word + word (hyphenated before a noun) = compound adjective
The bakery sold mouth-watering pastries every Saturday morning.

Common Compound Adjective Example Sentences
At the street market an ice-cold drink, at the dentist a last-minute appointment, and at the airport an up-to-date passport are the compound adjectives most speakers already use without thinking twice.
- At the street market, a vendor handed me an ice-cold bottle of water on a thirty-degree afternoon.
- Fatima made a last-minute decision to join the weekend hiking trip.
- Our teacher asked for an up-to-date bibliography before grading the final essay.
- A brand-new bicycle waited in the garage.
- That hotel charged extra for a king-size bed in the corner room.
- Across the square, a mouth-watering smell drifted from the bakery window.
- His old-fashioned pocket watch still kept perfect time after forty years.
- On Tuesday the clinic offered a walk-in appointment for flu vaccinations.
- We booked a round-trip flight to Lisbon and saved two hundred euros.
- Every contestant wore a tailor-made suit to the regional debate finals.
- Priya submitted a well-written proposal and received funding within a week.
- By noon the mechanic had replaced a worn-out brake pad on the rear wheel.
- Next to the runway, a high-speed train connects the airport to the city centre in twelve minutes.
- Nadia described the sunrise in a matter-of-fact manner that surprised her classmates.
- During surgery, the team performed a life-saving procedure on the injured cyclist.
- After the rainstorm, we dragged a heavy-duty extension cord from the garage to the garden.
Compound Adjective Patterns in Sentences
Three of the most recognizable compound adjective patterns are ice-cold (noun + adjective), full-time (adjective + noun), and five-star (number + noun), with adverb-participle and noun-participle pairs completing the set.
| Pattern | Example | Example sentence |
|---|---|---|
| Noun + Adjective | ice-cold | A waiter brought an ice-cold pitcher of lemonade to the patio. |
| Adjective + Noun | full-time | Daniela accepted a full-time position at the marine research lab. |
| Number + Noun | five-star | Travellers rated the seaside resort as a five-star destination. |
| Adverb + Past Participle | well-known | A well-known violinist performed at the charity gala on Friday evening. |
| Adverb + Present Participle | fast-moving | A fast-moving storm knocked out power to three neighbouring villages. |
| Noun + Past Participle | sun-dried | Gianluca added sun-dried tomatoes to the pasta before serving dinner. |
| Noun + Present Participle | breathtaking | Hikers reached a breathtaking viewpoint at the top of the valley trail. |
| Adjective + Participle | old-fashioned | My grandmother still writes old-fashioned letters by hand every Sunday. |
Noun + Adjective Compound Adjectives in Sentences
A bone-dry riverbed in Arizona, a sky-blue ceiling in a Roman chapel, and a rock-hard biscuit forgotten on a kitchen counter are places and objects where a noun sharpens an adjective into a vivid modifier.
- Our gardener cracked open the bone-dry soil with a pickaxe after three rainless weeks.
- Rosa painted the nursery ceiling a soft sky-blue shade that matched the curtains.
- After a night on the counter, the bread turned rock-hard and crumbled at the first touch.
- On the mountain road, the mechanic warned that the engine was running red-hot.
- A snow-white tablecloth covered the oak dining table at the anniversary dinner.
- Her toddler tugged at a skin-tight sleeve that she had bought one size too small.
- Every drink in the hospital cafeteria was sugar-free for the wellness programme.
- At the shallow end, the pool was only knee-deep for the youngest swimmers.
- Even after the price cut, that dirt-cheap fabric looked and felt expensive.
- We found a pitch-dark corridor behind the stage door.
- Wading through a waist-high stream, the hikers never stopped to remove their boots.
- Kenji placed a paper-thin slice of salmon on the seasoned rice.
- The deli’s newest sandwich featured a world-famous sourdough recipe from San Francisco passed down through three generations of bakers.
- Airport security required every passenger to use a hands-free device in the departure lounge.
Adjective + Noun Compound Adjectives in Sentences
Offices employ full-time workers, airports welcome last-minute travellers, and harbours launch deep-sea divers, and each compound pairs an adjective with a noun to name a role, a schedule, or a setting.
- At the factory, full-time employees receive dental insurance after ninety days.
- The family squeezed in a last-minute visit to the aquarium before the evening flight.
- A deep-sea expedition discovered three new species near the Atlantic ocean floor.
- Short-term parking at the train station costs four dollars for the first two hours.
- On the second floor, the museum displayed a long-distance radio used during the Second World War.
- Yuki enrolled in a part-time cooking course every Saturday morning near the harbour.
- Rescue workers built a large-scale shelter for the families displaced by the spring flood.
- Near the entrance, the theatre screened a first-class documentary about bird migration in the Arctic.
- Passengers boarded through a narrow-gauge railway tunnel carved into the mountainside.
- A bare-foot runner from Nairobi finished the race two minutes ahead of the field.
- That company moved to a high-rise office on the fourteenth floor of the tower.
- Campers pitched their tent on a flat-ground campsite beside the river.
- A cold-blooded reptile basked on the stone wall.
- In the lobby, the landlord installed a real-time energy meter for every tenant to read.
- By Thursday, the warehouse had switched to a wholesale pricing model for bulk orders.
Number + Noun Compound Adjectives in Sentences
Near a Tokyo campus, a three-bedroom apartment; in Boston, a twelve-week training programme; and over the river, a four-lane highway show that a number paired with a noun stays singular and takes a hyphen.
- Mr Alvarez signed the lease on a three-bedroom apartment near the university campus.
- For homework, the teacher assigned a ten-page report on renewable energy sources.
- Our family celebrated at a five-star restaurant overlooking the harbour at sunset.
- Because of a two-hour delay at Heathrow, we missed the connecting flight to Rome.
- The carpenter built a six-foot bookcase from reclaimed walnut planks.
- Athletes on the squad followed a twelve-week training programme before the national trials.
- Grandpa told a hundred-year-old story about the village well every Christmas Eve.
- Stretching from bank to bank, the bridge is a four-lane highway that crosses the river at its widest point.
- A nine-to-five schedule left no time for afternoon errands during the working week.
- In the rare-books room, the librarian shelved a first-edition copy of the novel behind the reference desk.
- On Saturday the bakery offered a three-course brunch for twelve euros per person.
- The nurse measured a ten-centimetre wound on the patient’s forearm before stitching.
- A twenty-storey tower is rising beside the old town hall on Market Street.
- From the studio came a two-part documentary about coral reef restoration in the Pacific.
Adverb + Participle Compound Adjectives in Sentences
At a gallery opening, well-dressed guests, on the highway a fast-moving storm, and after a drought a much-needed rain pair a non-ly adverb with a participle to build one modifier before the noun.
- At the gallery opening, well-dressed guests arrived with printed invitations in hand.
- A fast-moving wildfire forced three neighbourhoods to evacuate before midnight.
- Our teacher returned a well-written essay with only two minor corrections in the margin.
- Mr Torres ran a hard-working crew of grape pickers from dawn to dusk.
- A best-selling novel by the Korean author won three international literary awards and was translated into twenty-four languages within a single year.
- After retirement, Ernesto became a well-travelled lecturer on three continents.
- On the playground bench, the children left a half-eaten sandwich during recess.
- Housepainters recommended a long-lasting sealant for the exposed wooden deck.
- That senator introduced a far-reaching bill on vehicle emissions in the coastal zone.
- An ever-growing population is putting pressure on the city’s drinking water supply.
- Farmers along the coast welcomed the much-needed rain after eight dry weeks.
- Behind the community arts centre, a half-finished mural covered the east wall.
- For the Friday holiday departure, the airline sold over-priced tickets at the counter.
- Next door, our neighbours praised the well-mannered dog that never barked after nine at night.
- The biography exposed the worst-kept secret in the singer’s forty-year career.
- An ill-fitting jacket made the groom look uncomfortable in every wedding photograph.
Noun + Participle Compound Adjectives in Sentences
On a Roman pizza, sun-dried tomatoes, at a Kyoto workshop, handmade pottery, and in a grandmother’s notebook, time-tested recipes fuse a noun with a participle to name the method or the cause behind the description.
- At the trattoria, the chef served a salad topped with sun-dried tomatoes and crumbled feta cheese.
- Ayumi displayed her handmade ceramic bowls at the weekend craft fair in the park.
- A time-tested recipe for sourdough bread passed through four generations of bakers.
- Along the footpath, the storm left a row of wind-blown fences leaning toward the school.
- Conservators repaired a moth-eaten wool hanging dating from the fifteenth century.
- Children decorated hand-painted lanterns for the autumn harvest festival at school.
- On Saturday morning, the mechanic installed a custom-built exhaust system on the vintage motorcycle.
- An insurance adjuster inspected a storm-damaged roof after the Tuesday hailstorm.
- A blood-curdling scream echoed through the haunted house ride at the county fairground.
- The journalist published a record-breaking investigation into industrial water pollution that prompted two government agencies to revise their testing standards.
- That thought-provoking lecture on ocean plastic left the audience silent for a full minute.
- Beneath the glass-bottomed walkway, a jaw-dropping view of the canyon stretched into the distance.
- The company launched an energy-saving refrigerator that uses thirty percent less power.
- Lina baked a mouth-watering chocolate cake for the Friday office celebration.
Hyphenated and Unhyphenated Compound Adjectives in Sentences
Before a noun, a compound adjective takes a hyphen ("an ice-cold drink"), but after a linking verb the same pair drops it ("the drink was ice cold"). Each paired sentence shows the shift.
- We ordered an ice-cold smoothie from the cafe. / The smoothie was ice cold by the time we sat down.
- A well-known journalist covered the trial. / The journalist was well known for her investigative reports.
- At the checkout, the shop sold sugar-free gum. / Every flavour on that shelf was sugar free.
- On Monday the mechanic fixed a brand-new engine for the delivery van. / That engine was brand new and still under warranty.
- A good-looking candidate walked into the interview room. / Everyone agreed the candidate was good looking.
- Lena packed a light-blue dress for the Saturday wedding. / The dress she packed was light blue with white trim.
- The museum displayed a world-famous painting by the Dutch master. / That painting was world famous long before the restoration.
- Students sat for a two-hour exam on Friday morning. / The exam lasted two hours and ended at noon.
- The crew sailed on a state-of-the-art vessel across the strait. / Their vessel was state of the art and launched last spring.
- Yesterday a middle-aged man jogged past the fountain in the park. / The man who jogged past was middle aged and wore a red cap.
- Near the dairy aisle, the grocer stacked fat-free yoghurt on the top shelf. / Every tub of yoghurt on that shelf was fat free.
- Amira submitted a well-researched essay before the deadline. / Her essay was well researched and earned full marks from the panel.
Compound Adjective Example Sentences for Kids
At home, at school, and at the zoo, a seven-year-old already meets curly-haired dolls, chocolate-covered strawberries, and four-legged pets before learning the grammar name for them.
- My friend the curly-haired girl drew a picture of her cat on the whiteboard.
- Grandma served chocolate-covered strawberries after the birthday dinner.
- A four-legged puppy chased the ball across the backyard all morning.
- Our kind-hearted teacher gave everyone a gold sticker at the end of the week.
- We packed a home-made lunch for the school field trip on Thursday.
- The red-cheeked clown juggled three balls at the circus show.
- A long-haired rabbit lived in a cage beside the window in our classroom.
- My brother wore his bright-green raincoat to school on the rainy morning.
- In the garden, the two-storey treehouse had a rope ladder and a tiny flag on top.
- On sports day, bare-foot children raced across the freshly cut grass.
- That hard-boiled egg rolled off the plate and onto the kitchen floor.
- From the storybook, a one-eyed pirate searched for treasure on a sandy island.
- Before nap time, the librarian read a well-loved storybook to the whole class.
- After the art lesson, paint-splattered aprons hung on the hooks by the door.
- The zookeeper fed a sharp-toothed crocodile two fish before the morning tour.
Compound Adjective Example Sentences for Students
Across the campus, a well-organized thesis on a professor’s desk, a peer-reviewed journal in the library, and a time-limited exam in the lecture hall bring compound adjectives into academic writing and exam practice.
- Our professor returned a well-organized thesis with minor formatting corrections.
- A peer-reviewed study confirmed the findings of the original experiment.
- Students completed a time-limited essay under exam conditions in the main hall.
- In the lab, the supervisor required a step-by-step description of the titration procedure.
- A thought-provoking seminar on media ethics attracted students from four departments.
- The scholarship committee reviewed high-scoring applications from three different provinces.
- Sana presented a data-driven argument in her economics dissertation last semester.
- For the assignment, the tutor requested a two-thousand-word reflection on the summer placement.
- A cross-cultural research project paired students from Seoul with counterparts in Madrid.
- On Monday, the department published a long-awaited handbook on academic referencing and citation.
- Open-ended questions tested reasoning over recall.
- By Friday every student had submitted a double-spaced draft to the course portal.
- The supervisor praised a well-crafted abstract that summarised the entire study in one paragraph.
- Every multiple-choice test on cell biology opened the Tuesday morning lecture.
- During the Friday workshop on academic writing, the instructor distributed a ready-made template for research proposals and told the first-year students to adapt it for their own dissertations.
Compound Adjectives and Compound Nouns in the Same Sentence
Both sunflower as a compound noun and sun-dried as a compound adjective join two roots, and brand-new beside classroom and custom-built beside bookshelf repeat the same pairing across settings. More compound noun sentences explore the naming side.
- Brand-new posters covered the classroom walls before the first day of school.
- Nadia ordered a custom-built bookshelf that stretched across the living room wall.
- A high-speed railway connected the two cities in under ninety minutes.
- The full-time football coach trained the squad from September to the end of the season and travelled with them to every away match in the district.
- Time-consuming homework assignments left the students with no free evenings on weeknights.
- A last-minute birthday card arrived just one hour before the party started.
- The airport terminal displayed a round-trip fare to Madrid for the holiday weekend.
- Sun-dried tomatoes and fresh sunflower seeds added colour and crunch to the green salad.
- He tossed a worn-out toothbrush into the bin.
- Down the lane, a well-kept farmhouse stood at the end of a gravel road.
Sentences Rewritten With the Correct Compound Adjective
Adding -s to "three-years contract," dropping the hyphen from "well known author," and keeping the hyphen after "is" in "is well-known" are three errors a learner catches with a one-rule check.
- A well-known author signed the book at the fair ✅, wrong as A well known author signed the book at the fair ❌.
- HR offered a three-year contract to the new engineer ✅, wrong as HR offered a three-years contract to the new engineer ❌.
- She handed in a ten-page report on Monday morning ✅, wrong as She handed in a ten page report on Monday morning ❌.
- We stayed at a five-star hotel near the coast ✅, wrong as We stayed at a five-stars hotel near the coast ❌.
- Our high-speed train departed at noon ✅, wrong as Our high speed train departed at noon ❌.
- The author is well known for her travel writing ✅, wrong as The author is well-known for her travel writing ❌.
- Grandma wound the old-fashioned clock every Sunday ✅, wrong as Grandma wound the old fashioned clock every Sunday ❌.
- Both parties signed a six-month lease on the flat ✅, wrong as Both parties signed a six-months lease on the flat ❌.
- She got a full-time job ✅, wrong as She got a full time job ❌.
- The city unveiled a newly built bridge over the river ✅, wrong as The city unveiled a newly-built bridge over the river ❌.
Related
- Parts of Speech Example Sentences
- Comparative Adjective Example Sentences
- Predicate Adjective Example Sentences
FAQs
Compound adjectives are not always hyphenated, because the hyphen is needed only when the compound comes before the noun it modifies. In "a well-known author," the hyphen signals that "well" and "known" form one modifier, but in "the author is well known," the compound follows a linking verb and the hyphen drops. Compound adjectives that have become closed forms, such as "waterproof" and "heartbroken," never take a hyphen in either position.
A compound adjective and a compound noun differ in function, because one modifies a noun and the other names a person, place, or object. "Sunflower" is a compound noun that names a plant, while "sun-dried" is a compound adjective that describes how tomatoes were prepared. Asking whether a compound word describes or names is the fastest way to tell the two apart.
A compound adjective is formed by joining two or more words with a hyphen before the noun they modify. The most common patterns are noun + adjective (ice-cold), adjective + noun (full-time), number + noun (five-star), and adverb + participle (well-known). Less common formations use three words, as in "state-of-the-art" or "out-of-date."
A compound adjective drops its hyphen when it follows a linking verb such as "is," "was," or "looks," because the hyphen’s purpose is to signal that the words form one modifier before the noun. In "a well-known author," the hyphen binds "well" and "known" into one description of "author," but in "the author is well known," no noun follows and no hyphen is needed. Closed compounds such as "heartbroken" and "waterproof" keep their single-word form in both positions.
The noun inside a number-based compound adjective stays singular because the whole compound functions as one adjective, not as a quantity phrase. In "a ten-page report," "ten-page" is a single modifier, so "page" does not take a plural -s the way it does in "the report has ten pages." Writing "a ten-pages report" breaks the compound adjective structure and is treated as a grammar error.
A compound adjective with three or more words uses hyphens between every word in the chain, as in "state-of-the-art technology" or "over-the-counter medicine." Each hyphen tells the reader that all three or four words share one job: modifying the noun that follows. After a linking verb, the hyphens drop: "the technology is state of the art."
A compound predicate adjective is a compound adjective that follows a linking verb and describes the noun it refers to instead of appearing before that noun. In "the sunset was breathtaking," the compound adjective "breathtaking" follows "was" and describes "sunset," making it predicate. When a compound adjective moves to the predicate position, it loses its hyphen if it had one: "the well-known chef" becomes "the chef is well known."
Compound adjectives do not change form when the noun they modify becomes plural or possessive, because the adjective itself never takes a plural -s or a possessive apostrophe. "A well-known artist" and "two well-known artists" use the same compound adjective, and "a well-known artist’s studio" adds the possessive to the noun, not to the modifier. The only shift is that the hyphen disappears after a linking verb, and that change has nothing to do with number or possession.
Ten compound adjective example sentences cover six patterns in one pass. The ice-cold water refreshed the runners. A full-time nurse checked the ward. The five-star hotel overlooked the bay. A well-known painter signed the mural. The sun-dried clay cracked in the heat. She wore a brand-new coat. The round-trip fare cost ninety euros. A three-bedroom house sold in one day. The old-fashioned clock struck twelve. A mouth-watering pie cooled on the rack.
Adverbs ending in -ly do not need a hyphen when they pair with a participle, because the -ly suffix already signals that the word is an adverb modifying what follows. "A newly built bridge" and "a brightly lit stage" are correct without hyphens, while "a well-known author" keeps the hyphen because "well" does not end in -ly. Style guides from the Associated Press to the Chicago Manual agree on this part of speech rule.

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