| dissonant(adjective, flat, discordant, unharmonious, unmusical) |
| out of keeping(expression, idiom, flat, discordant, dissonant) |
| discordant(flat, asperous, dissonant, unmusical, screeching) |
| off-key(adjective, right) |
| atonal |
| disharmonious(discordant, asperous, raucous, unharmonious, dissonant) |
| flat(discordant, dissonant, screeching, tuneless) |
| grating(discordant, raucous, unharmonious, unmusical) |
| harsh(discordant, raucous, grinding, unharmonious, dissonant) |
| inappropriate |
| inharmonious(flat, discordant, raucous, unharmonious, dissonant) |
| raucous(discordant, unharmonious, unmusical) |
| sour(flat, discordant, dissonant, screeching, tuneless) |
| strident(discordant, raucous, grinding, unharmonious, dissonant) |
| tuneless(harsh, discordant, raucous, unharmonious, dissonant) |
| unmelodious(harsh, discordant, raucous, unharmonious, dissonant) |
| unmusical(flat, discordant, raucous, unharmonious, dissonant) |
| abnormal(flat, discordant, dissonant, screeching, tuneless) |
| ajar |
| amiss |