| spiteful(adjective, person, unwarmhearted) |
| anesthetized(adjective, cruel, unsympathetic, pitiless, insensitive) |
| cutthroat(adjective, mean, hard, severe, harsh) |
| dog-eat-dog(adjective, mean, hard, severe, harsh) |
| nonchalant(adjective, unfeeling, insensitive, insensible) |
| numb(adjective, cruel, unsympathetic, pitiless, insensitive) |
| passionless(adjective, unfriendly, unfeeling, unemotional, insensitive) |
| unapologetic |
| unforgiving(adjective, mean, hard, severe, harsh) |
| unpitying(adjective, mean, severe, harsh, cruel) |
| unresponsive(adjective, hard, careless, indifferent, cruel) |
| apathetic(adjective, hard, careless, indifferent, cruel) |
| bloodthirsty(adjective, pitiless) |
| compassionless(adjective, mean, hard, severe, attitude) |
| demoniac(adjective, pitiless) |
| dispassionate(adjective, cold, unfeeling, unsympathetic, pitiless) |
| hellacious(adjective, bad behavior) |
| ill-natured(adjective, bad behavior) |
| inaudacious(adjective, bad behavior) |
| incompatible(adjective, coldhearted) |