| ungracious(adjective, severe, rude, gracious, unkind) |
| unreasonable(adjective, careless, silly, foolish, stupid) |
| worry-free(adjective, feature, state, condition, trait) |
| absent-minded(adjective, careless, cold, foolish, stupid) |
| audacious(adjective, rude, careless, wild, impulsive) |
| devil-may-care(adjective, feature, state, careless, wild) |
| discourteous(adjective, sharp, rough, harsh, rude) |
| disregardful(adjective, sharp, slow, rude, careless) |
| impolitic(adjective, sharp, rough, rude, careless) |
| inane(adjective, careless, indifferent, foolish, stupid) |
| inobservant(adjective, careless, cold, forget, uncaring) |
| mad(adjective, silly, foolish, stupid, senseless) |
| unobservant(adjective, careless, cold, indifferent, foolish) |
| casual(adjective, feature, state, careless, trait) |
| crazy(adjective, silly, unwise, wacky) |
| dull(adjective, careless, stupid, irrational, languid) |
| idiotic(adjective, silly, foolish, stupid, senseless) |
| moronic(adjective, silly, foolish, stupid, senseless) |
| oblivious(adjective, careless, indifferent, silly, foolish) |
| unreflective(adjective, careless, stupid, casual, unthinking) |