| thoughtless(adjective, mean, nasty, ill, hostile) |
| unapproachable(adjective, person, frosty, forbidding) |
| uncompassionate(adjective, hard, cold, indifferent, detached) |
| uncordial(adjective, person, severe, unfeeling, numb) |
| unimpassioned(adjective, unfeeling, hard-hearted, nowhere, obdurate) |
| unimpressionable(adjective, hard, detached, unfeeling, unsympathetic) |
| unresponsive(adjective, hard, indifferent, detached, unfeeling) |
| unsusceptible(adjective, hard, indifferent, unfeeling, unsympathetic) |
| unwarmhearted(noun, cruel, heartless) |
| accustomed(adjective, hard, unfeeling, unsympathetic, prepared) |
| affectless |
| along for the ride(expression, adjective, idiom, detached, impassive) |
| anaesthetised |
| arctic |
| atrocious(adjective, negative emotions) |
| austere(adjective, mean, hard, harsh, cold) |
| autistic |
| backward(adjective, person, feelings) |
| barbarous(adjective, mean, hard, harsh, cold) |
| benumbed(adjective, hard, unfeeling, unsympathetic, prepared) |