| sharp(adjective, hard, severe, rough, harsh) |
| stony-hearted(adjective, hard, cruel, unfeeling, unsympathetic) |
| stonyhearted(adjective, person, feelings, emotions, coldhearted) |
| tough(adjective, mean, hard, cool, severe) |
| unconcerned(adjective, mean, hard, cool, sharp) |
| unpleasant(adjective, mean, hard, cool, tough) |
| unsociable(adjective, person, mean, nasty, hostile) |
| villainous(adjective, behavior, wicked, aroused negative, aroused awful feeling) |
| wicked(adjective, mean, bad, hard, wrong) |
| brutish(adjective, hard, evil, nasty, harsh) |
| cold-hearted(adjective, person, hard, tough, severe) |
| coldhearted(adjective, mean, hard, severe, harsh) |
| hard-boiled(adjective, bad, hard, tough, severe) |
| ill-natured(adjective, mean, evil, nasty, unpleasant) |
| incisive |
| incompatible(adjective, severe, bleak, stark, austere) |
| indifferent(adjective, person, mean, hard, cool) |
| injurious(adjective, person, mean, bad, wrong) |
| irritable(adjective, mean, nasty, unpleasant, dirty) |
| rigid(adjective, severe, bleak, stark, austere) |