| inflexible(adjective, mean, hard, careless, indifferent) |
| insensible(adjective, quiet, bad, hard, tough) |
| unpitying(adjective, mean, hard, cool, severe) |
| glacial(adjective, person, cool, detached, aloof) |
| malicious(adjective, animal, person, mean, nasty) |
| repugnant(adjective, mean, hard, cool, unpleasant) |
| savage(adjective, animal, mean, hard, harsh) |
| uncharitable(adjective, person, mean, hard, cool) |
| unmerciful(adjective, mean, severe, harsh, cruel) |
| unyielding(adjective, mean, hard, severe, harsh) |
| abhorrent |
| antagonistic(adjective, person, mean, tough, nasty) |
| antipathetic(adjective, mean, hard, cool, slow) |
| chill(adjective, mean, bad, nasty, cold) |
| coldhearted(adjective, person, mean, hard, cold) |
| disinterested(adjective, person, mean, hard, cool) |
| hardened(adjective, hard, tough, severe, careless) |
| impassive(adjective, hard, careless, indifferent, cruel) |
| misaffectionate(adjective, person, negative, unwarmhearted) |
| misanthropic(adjective, person, negative, unwarmhearted) |