| beastly(adjective, violent, cruel, vicious, fierce) |
| coldhearted(adjective, hard, severe, care, harsh) |
| dog-eat-dog(adjective, mean, hard, severe, care) |
| fiendish(adjective, animal, mean, cruel, vicious) |
| flinty(adjective, close, hard, severe, nasty) |
| frigid(adjective, hard, care, heartless, merciless) |
| inclement(adjective, harsh, cruel, brutal, unkind) |
| sanguinary(adjective, hard, tough, harsh, violent) |
| unbending(adjective, severe, harsh, cruel, determined) |
| unnatural(adjective, nasty, unkind, malicious, merciless) |
| barbarian(adjective, barbarous) |
| cold-hearted(adjective, hard, tough, severe, cold) |
| hellish(adjective, nasty, harsh, violent, cruel) |
| intractable(adjective, cruel, fixed, rigid, inflexible) |
| monstrous(adjective, severe, nasty, harsh, cruel) |
| stiff(adjective, severe, harsh, cruel, determined) |
| uncaring(adjective, person, hard, tough, severe) |
| uncharitable(adjective, person, aroused bad feelings) |
| untamed(adjective, violent, cruel, vicious, fierce) |
| violent(adjective, harsh, cruel, vicious, fierce) |