| unreflective(casual, inattention, obtuse, happy-go-lucky, slapdash) |
| unsolicitous(adjective, cold, forget, uncaring, inattentive) |
| unthankful(adjective, thankless, ungrateful) |
| wanton(adjective, free, careless, wild, reckless) |
| absentminded(adjective, careless, indifferent, apathetic, unconcerned) |
| carefree(adjective, feature, state, careless, indifferent) |
| easygoing(adjective, feature, state, dull, careless) |
| free and easy(expression, adjective, idiom, feature, state) |
| harebrained(adjective, careless, wild, silly, stupid) |
| headlong(adjective, violent, careless, fast, quick) |
| insensible(adjective, indifferent, unconcerned, unsympathetic, ignorant) |
| lazy(adjective, slow, careless, indifferent, thoughtless) |
| mooning(adjective, careless, silly, foolish, remote) |
| napping(adjective, careless, casual, thoughtless, inattentive) |
| nearsighted(adjective, dull, careless, indifferent, thoughtless) |
| senseless(adjective, careless, silly, foolish, thoughtless) |
| silly(adjective, careless, foolish, crazy, senseless) |
| slapdash(adjective, careless, indifferent, casual, quick) |
| temerarious(adjective, careless, wild, foolish, thoughtless) |
| unappreciative(adjective, thankless, ungrateful) |