| unthinking(adjective, careless, stupid, casual, inattention) |
| thoughtless(adjective, careless, stupid, casual, unthinking) |
| careless(adjective, stupid, casual, unthinking, inattention) |
| heedless(adjective, casual, inattention, obtuse, happy-go-lucky) |
| mindless(adjective, careless, stupid, casual, unthinking) |
| unthoughtful |
| inadvertent(adjective, careless, stupid, casual, unthinking) |
| reckless(adjective, casual, obtuse, happy-go-lucky, slapdash) |
| undiscerning(careless, stupid, unthinking, inattention, obtuse) |
| imprudent(adjective, careless, stupid, casual, unthinking) |
| inattentive(adjective, inattention, obtuse, unperceptive, unobservant) |
| inconsiderate(adjective, casual, happy-go-lucky, slapdash) |
| indiscreet(adjective, casual, happy-go-lucky, slapdash) |
| unreflecting(adjective, inattention) |
| hasty(adjective, casual, happy-go-lucky, slapdash) |
| ill-considered(careless, stupid, unthinking, candid, spontaneous) |
| impetuous |
| neglectful(adjective, inattention, obtuse, unperceptive, unobservant) |
| unguarded(adjective, casual, thoughtless, happy-go-lucky, slapdash) |
| unheeding(casual, inattention, obtuse, happy-go-lucky, slapdash) |