adjective
rough, crude (to the senses)
Synonyms: acrid, asperous, astringent, bitter, bleak, cacophonous, caterwauling, clashing, coarse, cracked, craggy, creaking, croaking, disagreeing, discordant, dissonant, disturbing, earsplitting, flat, glaring, grating, grim, guttural, hard, hoarse, incompatible, jagged, jangling, jarring, noisy, not smooth, off-key, out-of-key, out-of-tune, rasping, raucous, rigid, rugged, rusty, screeching, severe, sharp, sour, strident, stridulous, tuneless, uneven, unlevel, unmelodious, unmusical, unrelenting
Antonyms: easy, gentle, mild, peaceful, pleasing, smooth, soft
adjective
nasty, abusive
Synonyms: austere, bitter, brutal, comfortless, cruel, cussed, discourteous, dour, grim, gruff, hairy, hard, hard-boiled, hard-nosed, hard-shell, mean, pitiless, punitive, relentless, rude, ruthless, severe, sharp, stern, stringent, tough, uncivil, unfeeling, ungracious, unkind, unpleasant, unrelenting, wicked
Antonyms: courteous, kind, nice, polite