| barbarous(adjective, mean, severe, harsh, cruel) |
| callous(adjective, mean, severe, harsh, cruel) |
| compassionless(adjective, mean, severe, harsh, cruel) |
| cutthroat(adjective, mean, severe, harsh, cruel) |
| dog-eat-dog(adjective, mean, severe, harsh, cruel) |
| fierce(adjective, mean, severe, harsh, cruel) |
| gratuitous(adjective, mean, severe, harsh, cruel) |
| grim(adjective, mean, severe, harsh, cruel) |
| hard(adjective, mean, severe, harsh, cruel) |
| hardhearted(adjective, mean, severe, harsh, cruel) |
| harsh(adjective, mean, severe, cruel, pitiless) |
| hatchet job(expression, adjective, mean, severe, harsh) |
| having a killer instinct(expression, adjective, idiom, mean, severe) |
| heartless(adjective, mean, severe, harsh, cruel) |
| implacable(adjective, mean, severe, harsh, cruel) |
| inexorable(adjective, mean, severe, harsh, cruel) |
| inhumane(adjective, mean, severe, harsh, cruel) |
| iron-fisted(adjective, mean, severe, harsh, cruel) |
| mean(adjective, severe, harsh, cruel, pitiless) |
| merciless(adjective, mean, cruel, pitiless, heartless) |