| inclement(noun, adjective, cruel, merciless, pitilessness) |
| inhumane(adjective, mean, hard, tough, severe) |
| savage(adjective, mean, hard, tough, harsh) |
| unsparing(adjective, mean, severe, harsh, cruel) |
| unsympathetic(adjective, mean, severe, harsh, cruel) |
| dog-eat-dog(adjective, mean, severe, harsh, cruel) |
| unrelenting(adjective, mean, hard, tough, severe) |
| bloodthirsty(adjective, severe, harsh, violent, cruel) |
| brutish(adjective, violent, cruel, vicious, fierce) |
| ferocious(adjective, mean, harsh, violent, cruel) |
| inexorable(adjective, mean, hard, tough, severe) |
| uncharitable(adjective, mean, unkind, heartless, ungenerous) |
| unyielding(adjective, mean, hard, tough, severe) |
| barbarous(adjective, mean, hard, tough, severe) |
| fierce(adjective, mean, hard, tough, severe) |
| implacable(adjective, mean, hard, tough, severe) |
| inhuman(adjective, mean, hard, tough, harsh) |
| unnatural(heartless, malevolence) |
| vicious(adjective, mean, harsh, violent, cruel) |
| barbaric(adjective, violent, cruel, vicious, fierce) |