| contumacious |
| daring(adjective, careless, thoughtless, impulsive, reckless) |
| defiant |
| determined(adjective, careless, thoughtless, impulsive, reckless) |
| devil-may-care(adjective, careless, thoughtless, impulsive, reckless) |
| ebullient(adjective, wild, vivacious, buoyant, effervescent) |
| effervescent(adjective, wild, vivacious, uncontrollable, uncontainable) |
| enthusiastic(adjective, wild, vivacious, effervescent, uncontrollable) |
| fiery(adjective, careless, thoughtless, impulsive, reckless) |
| foolhardy(adjective, careless, thoughtless, impulsive, reckless) |
| fractious |
| frenzied(adjective, careless, wild, thoughtless, impulsive) |
| furious(adjective, careless, wild, thoughtless, impulsive) |
| harebrained(adjective, careless, thoughtless, impulsive, reckless) |
| hasty(adjective, careless, thoughtless, impulsive, reckless) |
| headlong(adjective, careless, thoughtless, impulsive, reckless) |
| heedless(adjective, careless, thoughtless, impulsive, reckless) |
| hotheaded(adjective, careless, thoughtless, impulsive, reckless) |
| ill-advised(adjective, careless, thoughtless, impulsive, reckless) |
| ill-considered(adjective, careless, thoughtless, impulsive, rash) |