| asleep at the switch(expression, idiom, rash, oblivious, neglectful) |
| bovine(careless, stupid, unthinking, obtuse, unperceptive) |
| careless(stupid, rash, unthinking, obtuse, oblivious) |
| confused(careless, stupid, unthinking, obtuse, unperceptive) |
| doltish(careless, stupid, unthinking, obtuse, unperceptive) |
| empty-headed(careless, stupid, unthinking, obtuse, unperceptive) |
| feckless(rash, oblivious, neglectful) |
| flighty(careless, stupid, unthinking, obtuse, unperceptive) |
| heedless(adjective, careless, rash, obtuse, oblivious) |
| ill-advised(careless, stupid, unthinking, obtuse, unperceptive) |
| ill-considered(careless, stupid, unthinking, obtuse, unperceptive) |
| imprudent(careless, stupid, rash, unthinking, obtuse) |
| inadvertent(adjective, careless, stupid, rash, unthinking) |
| inattentive(rash, obtuse, oblivious, neglectful, unperceptive) |
| incomprehensible(careless, stupid, unthinking, obtuse, unperceptive) |
| inept(careless, stupid, unthinking, obtuse, unperceptive) |
| irrational(careless, stupid, unthinking, obtuse, unperceptive) |
| lamebrained(careless, stupid, unthinking, obtuse, unperceptive) |
| loony(careless, stupid, unthinking, obtuse, unperceptive) |
| neglectful(rash, obtuse, oblivious, unperceptive, unobservant) |