| bold(adjective, careless, thoughtless, wary, heedless) |
| brash(adjective, careless, bold, thoughtless, impulsive) |
| careless(adjective, bold, thoughtless, unconcerned, impulsive) |
| caught short |
| daydreaming(adjective, blank, unconcerned, ignorant, naive) |
| dead to |
| deaf(adjective, blank, unconcerned, ignorant, naive) |
| devil-may-care(adjective, careless, bold, thoughtless, wary) |
| doped(adjective, unconcerned, ignorant, unconscious, heedless) |
| extemporaneous |
| fast-and-loose(adjective, careless, bold, thoughtless, impulsive) |
| foot-in-mouth(adjective, careless, bold, thoughtless, impulsive) |
| forgetful(adjective, unconcerned, ignorant, unconscious, heedless) |
| haphazard |
| heedless(adjective, careless, bold, thoughtless, unconcerned) |
| hotheaded(adjective, careless, bold, thoughtless, impulsive) |
| ignorant(adjective, blank, unconcerned, naive, unconscious) |
| ill-advised(adjective, careless, bold, thoughtless, impulsive) |
| ill-judged(adjective, careless, bold, thoughtless, impulsive) |
| impetuous(adjective, careless, bold, thoughtless, wary) |