| airy |
| batty(silly, foolish, crazy, insane, unwise) |
| beyond all reason(expression, idiom, silly, foolish, fantastic) |
| bootless |
| brassy(adjective, smart, bold, brave, impulsive) |
| bullheaded(determined, impulsive, stubborn, reckless, impetuous) |
| carefree(wild, bold, thoughtless, brave, daring) |
| cavalier |
| chin-up(strong, bold, spirited, brave, courageous) |
| chivalrous(strong, bold, spirited, brave, courageous) |
| cockeyed(silly, foolish, fantastic, unwise, impractical) |
| cocky(adjective, smart, rude, careless, bold) |
| contrary(determined, impulsive, stubborn, reckless, impetuous) |
| crackpot(adjective, impractical, half-baked, doomed) |
| crusty(adjective, smart, bold, brave, impulsive) |
| cuckoo(silly, foolish, unwise) |
| dangerous(adjective, anxious, bold, worried, brave) |
| defiant(strong, bold, spirited, brave, courageous) |
| derisory(silly, foolish, fantastic, unwise, impractical) |
| determined(careless, anxious, worried, thoughtless, impulsive) |