| fatuous(weak, simple, silly, foolish, thoughtless) |
| indecorous(adjective, offensive, rude, foolish, dirty) |
| inelegant(adjective, warm, offensive, rude, foolish) |
| insane(adjective, weak, simple, silly, foolish) |
| insensate(dull, unintelligent, witless) |
| loquacious(adjective, talkative, garrulous, mouthy, blithering) |
| naive(dull, foolish, rash, risky, unintelligent) |
| negligent(adjective, sharp, rude, careless, indifferent) |
| nonsensical(dull, weak, simple, silly, foolish) |
| playing with fire(expression, idiom, careless, wild, foolish) |
| regardless(adjective, careless, wild, casual, bold) |
| shortsighted(dull, unintelligent, witless) |
| simple(adjective, dull, weak, silly, foolish) |
| sloppy(casual, happy-go-lucky, slapdash) |
| slovenly |
| tasteless(adjective, offensive, vulgar, cheap, loud) |
| unmindful(adjective, sharp, rude, careless, indifferent) |
| unreasonable(adjective, weak, simple, silly, foolish) |
| unreflective(casual, happy-go-lucky, slapdash) |
| unsubtle(adjective, sharp, rough, careless, thoughtless) |