| insentient(adjective, hard, careless, cold, indifferent) |
| lacking interest |
| laid back(expression, adjective, feature, state, calm) |
| lax(adjective, feature, state, careless, indifferent) |
| lazy(adjective, calm, dull, weak, easy) |
| light-hearted(adjective, feature, state, trait) |
| lighthearted(adjective, feature, state, trait) |
| matter-of-fact(adjective, calm, cool, cold, dead) |
| mild(adjective, feature, state, calm, quiet) |
| neglectful(noun, adjective, calm, dull, cool) |
| non-caring(adjective, cold, dead, aloof, apathy) |
| objective(adjective, indifferent, detached, casual, aloof) |
| philosophical |
| pitiless(adjective, unfeeling, unsympathetic, uncaring, insensitive) |
| slack(noun, adjective, dull, careless, indifferent) |
| stoical(adjective, calm, cool, indifferent, detached) |
| stupefied(adjective, unfeeling, numb, under, asleep) |
| superficial |
| tolerant(adjective, feature, state, calm, mild) |
| unaware(adjective, ignorant, unconscious, unthinking, uninformed) |