| asinine(adjective, weak, simple, careless, foolish) |
| audacious(adjective, careless, wild, bold, thoughtless) |
| bold(adjective, careless, wild, thoughtless, impulsive) |
| breakneck(adjective, careless, wild, bold, thoughtless) |
| bubbleheaded(adjective, careless, unstable, unreliable, changeable) |
| capricious(adjective, careless, excited, foolish, unstable) |
| cavalier |
| cockamamie(adjective, weak, great, simple, extraordinary) |
| daredevil(adjective, careless, wild, bold, thoughtless) |
| daring(adjective, careless, wild, bold, thoughtless) |
| dotty(adjective, weak, simple, silly, foolish) |
| fantastic(weak, simple, silly, foolish, thoughtless) |
| flaky(extraordinary, silly, foolish, amazing, dubious) |
| frothy(adjective, ability, careless, inconstant, giddy) |
| headlong(adjective, careless, wild, thoughtless, impulsive) |
| imbecilic(adjective, weak, simple, knowledge, ability) |
| indiscreet(adjective, weak, simple, careless, wild) |
| irrational(adjective, weak, simple, careless, wild) |
| jejune |
| kooky(adjective, weak, great, simple, extraordinary) |