| callous(adjective, characteristic, mean, hard, cool) |
| loud(adjective, characteristic, hard, tough, rough) |
| acerbic(adjective, severe, taste, sharp, unpleasant) |
| astringent(adjective, characteristic, strong, hard, tough) |
| guttural(adjective, characteristic, hard, sound, severe) |
| inhuman(adjective, mean, hard, tough, evil) |
| jagged(adjective, characteristic, smooth, severe, rough) |
| noisy(adjective, characteristic, hard, severe, flat) |
| uneven(adjective, characteristic, smooth, severe, rough) |
| shrill(adjective, strong, sharp, rough, thin) |
| abusive(adjective, characteristic, severe, hostile, bleak) |
| clashing(adjective, characteristic, hard, severe, sharp) |
| comfortless(adjective, upset, characteristic, severe, rough) |
| craggy(adjective, characteristic, smooth, severe, rough) |
| demanding(adjective, hard, easy, severe, rough) |
| discourteous(adjective, characteristic, hard, tough, severe) |
| glaring(adjective, characteristic, hard, severe, sharp) |
| inflexible(adjective, mean, strong, hard, tough) |
| jangling(adjective, characteristic, severe, rough, bleak) |
| mean(adjective, characteristic, hard, cool, tough) |