| inconsiderate(adjective, close, mean, hard, tough) |
| out of touch(expression, idiom) |
| rigid(adjective, mean, hard, cool, severe) |
| soulless(adjective, hard, careless, indifferent, cruel) |
| spiritless(adjective, hard, cool, careless, cold) |
| unsentimental(adjective, tough, impassive, unemotional, hardened) |
| unsusceptible(noun, adjective, hard, careless, cold) |
| barbarous(adjective, animal, mean, severe, evil) |
| chilly(adjective, cool, cold, detached, unfriendly) |
| churlish(adjective, hard, tough, harsh, rude) |
| deadened(adjective, cruel, dead, unsympathetic, numb) |
| distant(adjective, cool, cold, indifferent, detached) |
| frosty(adjective, cool, cold, detached, unfriendly) |
| implacable(adjective, animal, mean, hard, severe) |
| inanimate(adjective, cold, indifferent, cruel, unsympathetic) |
| insusceptible(adjective, hard, cool, dead, blank) |
| inured(noun, adjective, hard, careless, indifferent) |
| nonchalant(adjective, calm, cool, relaxed, indifferent) |
| objective(adjective, calm, tough, indifferent, detached) |
| oblivious(adjective, cold, indifferent, senseless, impassive) |