| cold(adjective, calm, hard, cool, tough) |
| cool(adjective, calm, indifferent, restrained, detached) |
| hard-boiled(adjective, calm, mean, hard, tough) |
| hard-hearted(adjective, calm, mean, hard, tough) |
| heartless(adjective, mean, feeling, hard, cool) |
| thick-skinned(adjective, calm, mean, hard, cool) |
| unemotional(adjective, mean, hard, cool, tough) |
| unsympathetic(adjective, mean, hard, tough, severe) |
| above(adjective, indifferent, detached, distant, remote) |
| adamant(adjective, mean, hard, tough, harsh) |
| aloof(adjective, calm, indifferent, restrained, distant) |
| anesthetized(adjective, hard, tough, severe, cold) |
| apart(adjective, indifferent, detached, distant, remote) |
| apathetic(adjective, hard, tough, severe, cold) |
| asleep(adjective, hard, tough, severe, cold) |
| benumbed(adjective, hard, tough, severe, cold) |
| blank(adjective, cool, flat, detached, sober) |
| brutal(adjective, hard, tough, severe, harsh) |
| bullhead(adjective, mean, hard, tough, harsh) |
| callous(adjective, calm, mean, hard, tough) |