| wanton(adjective, mean, cruel, behavior, senseless) |
| hardhearted(adjective, mean, hard, cold, cruel) |
| malevolent(adjective, mean, evil, nasty, harsh) |
| obdurate(adjective, person, mean, hard, tough) |
| spiteful(adjective, person, mean, evil, nasty) |
| stern(adjective, person, appearance, mean, hard) |
| tough(adjective, hard, severe, rough, harsh) |
| dog-eat-dog(adjective, mean, hard, harsh, cruel) |
| fiendish(adjective, nasty, cruel, vicious, wicked) |
| uncompromising(adjective, hard, rough, harsh, cruel) |
| cold(adjective, mean, hard, tough, severe) |
| inflexible(adjective, person, hard, rough, harsh) |
| murderous(adjective, hard, tough, harsh, violent) |
| stony-hearted(adjective, cold, cruel, unfeeling, unsympathetic) |
| unfriendly(adjective, person, evil, negative, unfeeling) |
| unsparing(adjective, mean, severe, rough, difficult) |
| sinister(adjective, person, evil, negative, behavior) |
| bloody(adjective, hard, tough, harsh, violent) |
| inconsiderate(adjective, person, negative, behavior, senseless) |
| malicious(adjective, mean, evil, nasty, harsh) |