rough in texture or tone
coarse cloth
a coarse cry
adjusted or designed for heavy, fast, or less delicate work
a coarse saw
composed of relatively large particles
coarse sand
crude or unrefined in taste, manners, or language; common
said of language: vulgar or obscene
of ordinary or inferior quality or value
coarsely adv
coarseness noun
[Middle English cors, prob from course1 in the sense ‘the common run of things’]