| indifferent(adjective, casual, thoughtless, sloppy, insensitive) |
| indiscriminate(adjective, dull, careless, indifferent, thoughtless) |
| insensate |
| insolent |
| insuppressible(careless, thoughtless, impulsive, reckless, hasty) |
| jerky(weak, simple, silly, foolish, thoughtless) |
| jumping to conclusions(expression, idiom, careless, thoughtless, impulsive) |
| kooky(weak, simple, silly, foolish, unreasonable) |
| laughable |
| leaving self wide open(expression, careless, foolish, thoughtless, rash) |
| led up the garden path(expression, adjective, idiom, unreasonable, ill-advised) |
| lightheaded(adjective, mind, think) |
| loony(weak, simple, careless, silly, foolish) |
| ludicrous(weak, simple, silly, foolish, thoughtless) |
| lunatic(weak, simple, silly, foolish, thoughtless) |
| maladroit(adjective, sharp, rough, careless, thoughtless) |
| maniacal(adjective, mind, think) |
| misadvised |
| misled(adjective, foolish, unreasonable, unwise, mistaken) |
| misplaced(adjective, foolish, unreasonable, unwise, mistaken) |