WordNet sense 1 (of low or inferior quality or value):

common

WordNet sense 2 (of low or inferior quality):

inferior

WordNet sense 3 ((of textures) full of small openings or gaps):

loose

WordNet sense 4 (of textures that are rough to the touch or substances consisting of relatively large particles):

harsh

WordNet sense 5 (lacking refinement or cultivation or taste):

uncouth, vulgar, rough-cut

WordNet sense 6 ((used of persons and their behavior) not refined; uncouth):

unrefined

WordNet sense 7 (conspicuously and tastelessly indecent):

crude, earthy, gross