| stony(adjective, mean, hard, cool, tough) |
| unmerciful(adjective, mean, severe, harsh, cruel) |
| cold-hearted(adjective, person, feeling, hard, tough) |
| hard-boiled(adjective, mean, feeling, hard, attitude) |
| uncompassionate(adjective, mean, feeling, hard, cool) |
| obdurate(adjective, mean, feeling, hard, cool) |
| tough(adjective, mean, hard, cool, severe) |
| aloof(adjective, person, mean, hard, cool) |
| barbarous(adjective, mean, severe, evil, nasty) |
| hardened(adjective, hard, cool, tough, severe) |
| unemotional(adjective, mean, feeling, hard, cool) |
| remorseless(adjective, mean, severe, harsh, violent) |
| apathetic(adjective, mean, hard, cool, tough) |
| coldhearted(adjective, person, mean, hard, severe) |
| detached(adjective, person, hard, cool, indifferent) |
| frigid(adjective, person, mean, hard, cool) |
| sinful(adjective, bad, wrong, evil, nasty) |
| uncharitable(adjective, person, mean, hard, cool) |
| stony-hearted(adjective, hard, cold, cruel, unfeeling) |
| cool(adjective, mean, hard, unpleasant, cold) |