| dissonant(adjective, hard, agree, severe, flat) |
| harsh(adjective, hard, severe, rough, unpleasant) |
| discordant(adjective, hard, agree, severe, flat) |
| cacophonous(adjective, hard, agree, severe, sharp) |
| unmelodious(adjective, hard, severe, sharp, rough) |
| inharmonious(adjective, agree, flat, rough, harsh) |
| jarring(adjective, severe, flat, rough, harsh) |
| strident(adjective, hard, severe, sharp, rough) |
| unharmonious(adjective, agree, rough, harsh, wild) |
| grating(adjective, hard, severe, sharp, rough) |
| tuneless(adjective, hard, severe, sharp, rough) |
| disharmonious(adjective, agree, harsh, rude, discordant) |
| raucous(adjective, hard, severe, sharp, rough) |
| rough(adjective, quiet, hard, severe, sharp) |
| shrill(adjective, harsh, loud, blatant, grating) |
| inharmonic(adjective, agree, harsh, rude, discordant) |
| off-key(adjective, hard, right, severe, sharp) |
| unmelodic(adjective, discordant, dissonant, jarring) |
| antagonistic(adjective, discordant, inharmonious) |
| cacophonic(adjective, discordant, asperous, raucous, unharmonious) |