| antagonistic(adjective, hostile, belligerent, quarrelsome) |
| bellicose(adjective, hostile, courage, belligerent, quarrelsome) |
| bitter(adjective, unpleasant, violent, wild, vicious) |
| cannibal(noun, animal, beast) |
| crucify |
| cutthroat(adjective, mean, strong, hard, severe) |
| deadly |
| earliest(adjective, wild, original, untamed) |
| frantic(adjective, violent, cruel, vicious, fierce) |
| homicidal(adjective, unpleasant, passionate, violent, cruel) |
| implacable(adjective, animal, mean, hard, tough) |
| insensitive(adjective, mean, hard, tough, harsh) |
| malicious(adjective, animal, mean, evil, nasty) |
| malignant(adjective, animal, mean, nasty, violent) |
| nasty(adjective, mean, violent, wild, fierce) |
| ruffian(noun, animal, evil doer) |
| rugged(adjective, unpleasant, violent, wild, vicious) |
| scathing(adjective, hostile, belligerent, quarrelsome) |
| terrible(adjective, strong, intense, violent, shocking) |
| unrestrained(adjective, intense, passionate, violent, wild) |