| detached(adjective, inattentive) |
| devil-may-care(soft, tolerant, slack, lenient, remiss) |
| easygoing(soft, tolerant, slack, lenient, remiss) |
| haphazard(adjective, neglectful) |
| insensible(adjective, unconcerned, unfamiliar, uninformed) |
| insubordinate(adjective, disobedient) |
| intractable(adjective, disobedient) |
| irresponsible(adjective, careless, casual, criminal, negligent) |
| lackadaisical(slow, careless, indifferent, casual, thoughtless) |
| mindless(casual, happy-go-lucky, slapdash) |
| mischievous(adjective, disobedient) |
| napping(adjective, casual, inattentive, happy-go-lucky, slapdash) |
| nonchalant(adjective, careless, indifferent, casual, thoughtless) |
| offhand(adjective, careless, indifferent, casual, thoughtless) |
| pococurante(casual, happy-go-lucky, slapdash) |
| promiscuous |
| slapdash(adjective, slow, careless, indifferent, casual) |
| sloppy(adjective, soft, careless, indifferent, casual) |
| unconscious(adjective, inattentive) |
| undiscriminating |