coarse vs grainy

coarse and grainy both are adjectives.

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

coarse (adjective)	grainy (adjective)
of textures that are rough to the touch or substances consisting of relatively large particles	composed of or covered with particles resembling meal in texture or consistency
of low or inferior quality or value
lacking refinement or cultivation or taste