| undevised(adjective, planned, unplanned, unintentional, accidental) |
| fortuitous(adjective, surprise, unplanned, unintentional, accidental) |
| slapdash(adjective, careless, indifferent, casual, thoughtless) |
| slipshod(adjective, careless, indifferent, casual, sloppy) |
| uncalculated(adjective, ignorant, hidden, unconscious, unaware) |
| unconcerned(adjective, careless, indifferent, coarse, casual) |
| unguarded(adjective, casual, happy-go-lucky, slapdash) |
| unthoughtful(adjective, cold, forget, uncaring, inattentive) |
| abstracted(adjective, careless, indifferent, casual, thoughtless) |
| disinterested(adjective, inattentive) |
| dreamy(adjective, careless, indifferent, apathetic, distracted) |
| faraway(adjective, careless, indifferent, apathetic, distracted) |
| feckless(adjective, careless, thoughtless, rash, unwise) |
| haphazard(adjective, unknowing, unaware, unplanned, neglectful) |
| incautious(adjective, casual, rash, happy-go-lucky, oblivious) |
| indifferent(adjective, careless, casual, apathetic, sloppy) |
| sloppy(adjective, careless, indifferent, casual, thoughtless) |
| slovenly(adjective, careless, indifferent, unconcerned, sloppy) |
| superficial |
| unaware(adjective, ignorant, hidden, unconscious, unknowing) |