| uncivil(adjective, characteristic, hard, tough, severe) |
| uncompromising(adjective, mean, hard, severe, rough) |
| unforgiving(adjective, characteristic, mean, hard, tough) |
| unmelodious(adjective, characteristic, hard, severe, rough) |
| unyielding(adjective, mean, strong, hard, tough) |
| vicious(adjective, mean, hard, severe, evil) |
| unmusical(adjective, characteristic, hard, severe, rough) |
| brusque(adjective, tough, severe, gloomy, awkward) |
| dry(adjective, hard, severe, rough, offensive) |
| flat(adjective, characteristic, hard, severe, sharp) |
| hard-hearted(adjective, mean, hard, tough, evil) |
| obdurate(adjective, mean, strong, hard, cool) |
| scathing(adjective, hard, unpleasant, cold, short) |
| stiff(adjective, upset, hard, severe, rough) |
| virulent(adjective, severe, evil, nasty, vicious) |
| barbarous(adjective, mean, hard, tough, severe) |
| critical(adjective, characteristic, mean, severe, unpleasant) |
| crude(adjective, simple, sharp, rough, rude) |
| excruciating(adjective, hard, severe, evil, rough) |
| inexorable(adjective, mean, strong, hard, tough) |