out-of-tune

discordant jarring raucous

cacophonic cacophonous disharmonic disharmonious grating harsh inharmonic inharmonious jangling strident tuneless unmelodious unmusical

coinciding compatible complementary concordant consonant harmonious similar

bitter bleak grim hard rigid severe sharp strident

coarse

acrid asperous astringent cacophonous caterwauling clashing cracked craggy creaking croaking disagreeing discordant dissonant disturbing earsplitting flat glaring grating guttural hoarse incompatible jagged jangling jarring noisy not smooth off-key out-of-key rasping raucous rugged rusty screeching sour stridulous tuneless uneven unlevel unmelodious unmusical unrelenting

bland bright calm cheerful easy facile flexible kind low mild moderate nice pleasant pliable pliant soft sunny yielding

courteous gentle peaceful pleasing polite smooth

discordant dissonant

abnormal anomalous clinker deviant divergent flat inharmonious irregular jarring not harmonious off-pitch off-tone out of keeping out of pitch sour sour note unmusical unnatural untuned

concordant harmonious

on-key

cracked discordant hoarse raspy raucous

acrid asperous astringent bitter bleak cacophonous caterwauling clashing coarse craggy creaking croaking disagreeing dissonant disturbing dry earsplitting flat glaring grating grim guttural hard incompatible jagged jangling jarring noisy not smooth off-key out-of-key rasping rigid rough rugged rusty screeching severe sharp sour squawky strident stridulous tuneless uneven unlevel unmelodious unmusical unrelenting

soft

cacophonous caterwauling coarse cracked creaking croaking discordant dissonant earsplitting flat grating grim guttural hard hoarse jagged jangling jarring noisy off-key out-of-key rasping raspy raucous rough rugged rusty scratchy screeching severe sharp sour strident stridulous tuneless unmelodious unmusical