| imprudent(adjective, careless, determined, thoughtless, rash) |
| whimsical(adjective, careless, unstable, unreasonable, unsettled) |
| injudicious(adjective, careless, foolish, bold, thoughtless) |
| madcap(noun, adjective, intense, rude, careless) |
| mechanical(adjective, rude, careless, natural, thoughtless) |
| brash(adjective, careless, silly, foolish, crazy) |
| abrupt(adjective, quick, thoughtless, rash, unthinking) |
| changeable(adjective, cross, lively, melancholy, active) |
| extemporaneous(noun, adjective, adverb, simple, natural) |
| fickle(adjective, moving, cross, careless, lively) |
| flighty(adjective, careless, unstable, unreasonable, unsettled) |
| intuitive(adjective, natural, thoughtless, reasoning, instinctive) |
| ill-considered(adjective, careless, foolish, careful, thoughtless) |
| sudden(noun, adjective, extraordinary, careless, wonderful) |
| thoughtless(adjective, rude, careless, silly, foolish) |
| unmeditated(adjective, natural, thoughtless, impulse, instinctive) |
| emotional(noun, adjective, strong, moving, difficult) |
| inconstant(adjective, careless, lively, active, unstable) |
| passionate(adjective, moving, violent, careless, enthusiastic) |
| quick(noun, adjective, nervous, emotional, thoughtless) |