| unharmonious(adjective, rough, wild, conflicting, upsetting) |
| wild(adjective, hard, severe, rough, difficult) |
| acidulous |
| adamant(adjective, mean, strong, hard, tough) |
| antagonistic(adjective, mean, tough, sharp, cruel) |
| awful(adjective, great, huge, endured, massive) |
| cold-blooded(adjective, mean, hard, cool, tough) |
| cragged(adjective, smooth, rough, coarse, irregular) |
| crusty(adjective, tough, rough, irritable, sullen) |
| cussed(adjective, characteristic, severe, nasty, rude) |
| disagreeable(adjective, hard, tough, rough, offensive) |
| disharmonious(adjective, contrary, conflicting, discordant, inharmonious) |
| distressing(adjective, hard, tough, severe, rough) |
| evil(adjective, mean, nasty, vicious, wicked) |
| firm(adjective, mean, strong, hard, tough) |
| inharmonious(adjective, rough, unpleasant, coarse, conflicting) |
| intolerable(adjective, hard, tough, severe, rough) |
| jangly(adjective, characteristic, loud, severity, toughness) |
| malevolent(adjective, mean, wrong, evil, nasty) |
| monstrous(adjective, great, severe, evil, nasty) |