- composed of relatively large parts or particles: The beach had rough, coarse sand.
- lacking in fineness or delicacy of texture, structure, etc.: The stiff, coarse fabric irritated her skin.
- harsh; grating.
- lacking delicacy, taste, or refinement; unpolished: He had coarse manners but an absolutely first-rate mind.
- of inferior or faulty quality; common; base.
- vulgar; obscene; crude: His coarse language angered us.
- (of metals) unrefined.
- (of a metal file) having the maximum commercial grade of coarseness.
Origin of coarse
SynonymsSee more synonyms for coarse on Thesaurus.com
- rough in texture, structure, etc; not finecoarse sand
- lacking refinement or taste; indelicate; vulgarcoarse jokes
- of inferior quality; not pure or choice
- (of a metal) not refined
- (of a screw) having widely spaced threads
Word Origin and History for coarse
early 15c., cors "ordinary" (modern spelling is from late 16c.), probably adjectival use of noun cours (see course (n.)), originally referring to rough cloth for ordinary wear. Developed a sense of "rude" c.1500 and "obscene" by 1711. Perhaps related, via metathesis, to French gros, which had a similar sense development. Related: Coarsely; coarseness.