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Synonyms

coarse

American  
[kawrs, kohrs] / kɔrs, koʊrs /

adjective

  • coarser,
    comparative
  • coarsest
    superlative
  1. composed of relatively large parts or particles.

    The beach had rough, coarse sand.

  2. lacking in fineness or delicacy of texture, structure, etc..

    The stiff, coarse fabric irritated her skin.

    Synonyms:
    rough, rude, crude
  3. harsh; grating.

  4. lacking delicacy, taste, or refinement; unpolished.

    He had coarse manners but an absolutely first-rate mind.

    Synonyms:
    crass, gross, vulgar, rough, rude, crude
    Antonyms:
    sensitive, refined
  5. of inferior or faulty quality; common; base.

  6. vulgar; obscene; crude.

    His coarse language angered us.

    Synonyms:
    indelicate
  7. (of metals) unrefined.

  8. (of a metal file) having the maximum commercial grade of coarseness.


coarse British  
/ kɔːs /

adjective

  1. rough in texture, structure, etc; not fine

    coarse sand

  2. lacking refinement or taste; indelicate; vulgar

    coarse jokes

  3. of inferior quality; not pure or choice

  4. (of a metal) not refined

  5. (of a screw) having widely spaced threads

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

Derived Forms

Inflected Forms

Adjectives

Etymology

Origin of coarse

First recorded in 1550–60; earlier cors(e), course, cowarce; of obscure origin

Explanation

Coarse can mean rough to the touch or vulgar. It's good to have coarse sand paper, but not good to have coarse manners. Do you lick your dinner plate, wipe your nose on your sleeve, and generally behave like an oaf? No, of course not. You're the kind of person who reads online dictionaries. But if you did do any of things, you'd be coarse — that is, unrefined, boorish, and downright vulgar. Coarse can apply to a wide variety of things other than behavior. If something is of poor quality, cheap and inferior, it's considered coarse.

Keep Reading on Vocabulary.com

Vocabulary lists containing coarse

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

India's main summer crops include rice, pulses, coarse cereals, oilseeds, cotton, sugarcane and jute.

From BBC Jul. 1, 2026

During the hottest hours, many retreat to makeshift huts -- frames of sticks draped with coarse homespun cloth, plastered with wild donkey dung.

From Barron's May 10, 2026

Under normal conditions, turbidites show a consistent pattern, with coarse material settling at the bottom and finer sediment layering on top.

From Science Daily May 2, 2026

The second is performed less persuasively, in part because the world is now a coarse place, much less receptive to his civilized ideas.

From The Wall Street Journal Apr. 10, 2026

I pictured it in our basement bathroom, its delicate wings set against the coarse cement.

From "Educated" by Tara Westover

Unlike Maricopa Highway 33, Hudson Ranch Road features coarser asphalt, no guardrails and more passing zones than turnouts.

From Los Angeles Times Aug. 13, 2026

The ad itself uses coarser language and has given rise to awkwardness: “That makes the LGBTQ+ community think, ‘Oh, Spencer,’ and Heidi, my wife, is a huge gay icon.”

From The Wall Street Journal May 29, 2026

The coarser material on top appeared to result from a subsequent event along the nearby San Andreas fault.

From Science Daily May 2, 2026

The scope of SinoProbe II—successor to SinoProbe I, a coarser survey that ran from 2008–16—“is mind-boggling,” says Larry Brown, a geophysicist at Cornell University.

From Science Magazine Nov. 17, 2024

It’s brighter and coarser than regular glitter, as if it was made with crushed jewels.

From "The Manifestor Prophecy" by Angie Thomas

Is it a mistake to always default to the view that the people in the mirror universe are driven by the coarsest possible factors, by racism and greed, for example?

From Salon Sep. 14, 2023

If you have multiple files, work from coarsest to finest, just like sanding a table.

From Seattle Times Jan. 3, 2022

Areas closest to the river and its branches rose the highest in elevation, because they got the most doses of the coarsest sediment.

From Scientific American Mar. 3, 2018

Jeffrey Harmon says the concept was inspired by something he’d noticed as a missionary in Ireland: upper-crust accents refine the coarsest jokes.

From Washington Post Jul. 20, 2016

So on that day, Wu Tsing, fearful of my mother’s vengeful spirit, wore the coarsest of white cotton mourning clothes.

From "The Joy Luck Club" by Amy Tan

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