| unsympathetic(adjective, person, mean, sharp, rough) |
| vacant(adjective, dull, wrong, careless, indifferent) |
| apathetic(adjective, dull, sharp, rude, careless) |
| blunt(adjective, careless, inconsiderate, crass, tactless) |
| distrait(adjective, careless, cold, forget, uncaring) |
| empty-headed(adjective, careless, indifferent, silly, stupid) |
| feckless(adjective, feature, state, careless, wild) |
| happy-go-lucky(adjective, feature, state, trait, casual) |
| ill-judged(adjective, careless, foolish, bold, impulsive) |
| incurious(adjective, careless, cold, forget, uncaring) |
| insane(adjective, silly, unwise) |
| insouciant(adjective, feature, state, dull, trait) |
| lightweight |
| listless(adjective, energy, sharp, rude, careless) |
| mean(adjective, person, negative, ill, hostile) |
| merciless(adjective, person, negative) |
| short-sighted(adjective, silly, foolish, rash, unwise) |
| undiscerning(adjective, careless, indifferent, foolish, stupid) |
| unguarded(adjective, careless, casual, bold, impulsive) |
| unreasoning(adjective, dull, careless, indifferent, foolish) |