| audacious(adjective, careless, thoughtless, impulsive, rash) |
| bold(adjective, careless, thoughtless, impulsive, rash) |
| crazy(adjective, weak, simple, silly, foolish) |
| hotheaded(adjective, careless, foolish, careful, thoughtless) |
| immature(adjective, careless, foolish, thoughtless, impulsive) |
| precipitant(adjective, careless, careful, thoughtless, impulsive) |
| spontaneous(adjective, impulsive, unqualified, candid, offhand) |
| temerarious(adjective, careless, foolish, careful, thoughtless) |
| unfortunate(adjective, foolish, rash, unwise, risky) |
| unseemly(foolish, thoughtless, unwise, risky, imprudent) |
| witless(adjective, weak, simple, careless, silly) |
| wrong(adjective, foolish, thoughtless, unwise, risky) |
| adventurous(adjective, careless, thoughtless, impulsive, rash) |
| childish(adjective, silly, foolish, trivial, rash) |
| impromptu(adjective, impulsive, unqualified, unprepared, unsuspecting) |
| improper |
| improvised(adjective, impulsive, unqualified, unprepared, unsuspecting) |
| inadvertent(careless, stupid, unthinking, obtuse, unperceptive) |
| inane(adjective, careless, foolish, stupid, rash) |
| inapt |