| capricious(irrational, arbitrary, perverse) |
| inconsiderate(adjective, dull, careless, indifferent, thoughtless) |
| insensate |
| rabid |
| rash(adjective, careless, thoughtless, inconsiderate, obtuse) |
| unreasoned(adjective, irrational, arbitrary, perverse) |
| vacant(adjective, dull, rude, careless, stupid) |
| arbitrary(irrational, perverse) |
| careless(adjective, dull, indifferent, foolish, stupid) |
| dull(adjective, careless, stupid, unthinking, unintelligent) |
| empty-headed(careless, stupid, unthinking, obtuse, unperceptive) |
| fallacious(foolish, unreasonable, irrational, illogical, arbitrary) |
| ignorant(adjective, dull, careless, indifferent, thoughtless) |
| inadvertent(adjective, careless, foolish, stupid, thoughtless) |
| inane(careless, stupid, unthinking, unintelligent, obtuse) |
| inconsequential(irrational, arbitrary, perverse) |
| inept(careless, stupid, unthinking, obtuse, unperceptive) |
| invalid(foolish, unreasonable, irrational, illogical, arbitrary) |
| mad(adjective, foolish, unreasonable, irrational, illogical) |
| nonsensical(adjective, foolish, unreasonable, irrational, illogical) |