| abnormal(flat, discordant, dissonant, screeching, tuneless) |
| anomalous(flat, discordant, dissonant, screeching, tuneless) |
| clinker(flat, discordant, dissonant, screeching, tuneless) |
| deviant(flat, discordant, dissonant, screeching, tuneless) |
| dissonant(flat, discordant, screeching, tuneless) |
| divergent(flat, discordant, dissonant, screeching, tuneless) |
| flat(discordant, dissonant, screeching, tuneless) |
| inharmonious(flat, discordant, dissonant, screeching, tuneless) |
| irregular(flat, discordant, dissonant, screeching, tuneless) |
| jarring(flat, discordant, dissonant, screeching, tuneless) |
| not harmonious(expression, flat, discordant, dissonant, screeching) |
| off-tone(flat, discordant, dissonant, screeching, tuneless) |
| out of keeping(expression, idiom, flat, discordant, dissonant) |
| out of pitch(expression, idiom, flat, discordant, dissonant) |
| out of tune(expression, idiom, flat, discordant, dissonant) |
| sour(flat, discordant, dissonant, screeching, tuneless) |
| sour note(expression, flat, discordant, dissonant, screeching) |
| unmusical(flat, discordant, dissonant, screeching, tuneless) |
| unnatural(flat, discordant, dissonant, screeching, tuneless) |
| untuned(flat, discordant, dissonant, screeching, tuneless) |