uncouth vs coarse

uncouth and coarse both are adjectives.

Word	Noun	Adjective	Verb	Adverb
uncouth	No	Yes	No	No
coarse	No	Yes	No	No

As adjectives, uncouth and coarse are synonyms defined as:

Other synonyms of uncouth include common, rough-cut, vulgar.

uncouth (adjective)	coarse (adjective)
lacking refinement or cultivation or taste	of textures that are rough to the touch or substances consisting of relatively large particles
	of low or inferior quality or value
	lacking refinement or cultivation or taste