is similar to: rough, unsmooth.

derivation: abrasiveness, harshness, scratchiness | abrasion, excoriation, scrape, scratch | abradant, abrasive, abrasive material | abrade, scour | abrade, abrase, corrade, rub down, rub off.

is similar to: ill-natured.

derivation: contrariness, crankiness, crotchetiness, grumpiness | biliousness, irritability, peevishness, pettishness, snappishness, surliness, temper | fractiousness, unruliness, wilfulness, willfulness | choler, crossness, fretfulness, fussiness, irritability, peevishness, petulance | testiness, tetchiness, touchiness | churl, crank, crosspatch, grouch, grump.

is similar to: inconsistent.

derivation: unevenness, variability.

is similar to: cacophonic, cacophonous.

derivation: harshness, roughness | rasp, rasping | scrape, scraping, scratch, scratching.