| benumbed(adjective, hard, tough, severe, cold) |
| blah(adjective, calm, dull, flat, detached) |
| blind to(expression, adjective, hard, careless, indifferent) |
| bullhead(adjective, mean, hard, tough, harsh) |
| cantankerous(adjective, hard, tough, severe, cold) |
| careless(adjective, hard, indifferent, cruel, apathetic) |
| case-hardened(adjective, hard, careless, indifferent, cruel) |
| chill(adjective, detached, impassive, unresponsive, laid-back) |
| churlish(adjective, hard, tough, severe, cold) |
| closed(adjective, coldhearted) |
| cold-hearted(adjective, hard, tough, severe, cold) |
| cold fish(expression, adjective, mean, hard, tough) |
| compassionless(adjective, hard, cruel, unfeeling, unsympathetic) |
| contemptuous(adjective, hard, unfeeling, unsympathetic, hardened) |
| crotchety(adjective, hard, tough, severe, cold) |
| deadpan(adjective, calm, dull, flat, detached) |
| deaf to(expression, adjective, hard, careless, indifferent) |
| disdainful(adjective, hard, unfeeling, unsympathetic, hardened) |
| distant |
| dogged(adjective, mean, hard, harsh, inflexible) |