| tough(adjective, hard, severe, cruel, unsympathetic) |
| unamiable(adjective, hard, tough, severe, cold) |
| uncompassionate(adjective, hard, tough, severe, cold) |
| uncordial(adjective, hard, tough, severe, cold) |
| unemotional(adjective, hard, tough, severe, cold) |
| unfeeling(adjective, cruel, unsympathetic, numb, pitiless) |
| unkind(adjective, hard, tough, severe, cruel) |
| unsympathetic(adjective, hard, tough, severe, cold) |
| aloof(unfeeling, hard-hearted, frozen, deadened, unimpassioned) |
| casual(unfeeling, frozen, deadened) |
| coldblooded(adjective, unfeeling, senseless, numb, hard-hearted) |
| coldhearted(adjective, severe, unfeeling, numb, hard-hearted) |
| comatose(unfeeling, frozen, deadened) |
| cool cat(expression, adjective, unfeeling, hard-hearted, nowhere) |
| dazed(unfeeling, frozen, deadened) |
| detached(adjective, unfeeling, frozen, deadened, anesthetized) |
| disinterested(adjective, unfeeling, frozen, deadened, anesthetized) |
| emotionless(adjective, unfeeling, hard-hearted, nowhere, obdurate) |
| frozen(unfeeling, deadened) |
| hard as nails(expression, adjective, idiom, unfeeling, hard-hearted) |