| harsh(adjective, hard, severe, sharp, flat) |
| unmelodious(adjective, hard, severe, sharp, rough) |
| dissonant(adjective, hard, severe, sharp, rough) |
| unmusical(adjective, hard, severe, sharp, rough) |
| discordant(adjective, hard, severe, sharp, flat) |
| inharmonious(adjective, unpleasant, discordant, raucous, unharmonious) |
| untuneful |
| cacophonous(adjective, hard, severe, sharp, rough) |
| disharmonious(adjective, discordant, asperous, raucous, unharmonious) |
| inharmonic(adjective, discordant, asperous, raucous, unharmonious) |
| unharmonious(adjective, discordant, asperous, raucous, dissonant) |
| disharmonic(adjective, discordant, asperous, raucous, unharmonious) |
| jarring(adjective, hard, severe, sharp, rough) |
| out of tune(expression, adjective, idiom, harsh, discordant) |
| antagonistic(adjective, discordant) |
| atonal |
| conflicting(adjective, discordant) |
| contentious(adjective, discordant) |
| cracked(adjective, hard, severe, sharp, flat) |
| flat(adjective, hard, severe, sharp, rough) |