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.

noun

delicacy , manners , politeness , refinement , sophistication

noun

bawdiness , boorishness , callousness , crassness , crudity , earthiness , harshness , indelicacy , offensiveness , poor taste , rawness , ribaldry , roughness , smut * , smuttiness , uncouthness , unevenness , unrefinement , dirtiness , filthiness , foulness , grossness , lewdness , profaneness , profanity , scurrility , scurrilousness , vulgarity , vulgarness