| austere(adjective, tough, harsh, cruel, grim) |
| bad-natured(adjective, mean, nasty, vicious, wicked) |
| beastly(adjective, mean, bad, nasty, violent) |
| begrudging(adjective, severe, nasty, hostile, resentful) |
| bellicose(adjective, mean, nasty, unfriendly, hateful) |
| biting(adjective, severe, nasty, speech, hostile) |
| black-hearted(adjective, malevolent) |
| bleak(adjective, tough, harsh, cruel, grim) |
| brutal(adjective, mean, tough, evil, nasty) |
| brute |
| chill(adjective, mean, nasty, unfriendly, hateful) |
| clashing |
| cold(adjective, mean, tough, nasty, harsh) |
| colliding |
| competitive(adjective, mean, nasty, unfriendly, hateful) |
| conflicting |
| contentious(adjective, mean, nasty, unfriendly, hateful) |
| corrosive(adjective, malevolent) |
| cussed(adjective, mean, nasty, violent, wild) |
| degenerate(adjective, evil, nasty, harsh, violent) |