adjective
1.
lacking in or showing lack of care and attention
careless of the harm his neglect might do to others
unwilling to accept such careless shoddy work
Synonyms: feckless, heedless, inadvertent, irreflective, thoughtless, uncaring, unheeding, unrecking, unreflective, unthinking; compare incautious , rash 1
Related Word: forgetful, inattentive, oblivious, unmindful; lax, neglectful, negligent, slack, unconcerned, uninterested; inadequate, incapable, unfit, unqualified
Contrasted words: careful, heedful, thoughtful; concerned, considerate, punctilious, scrupulous
Antonyms: careful
2.
Synonyms: irresponsible , carefree, feckless, incautious, reckless, uncareful, wild
3.
Synonyms: negligent , behindhand, delinquent, derelict, disregardful, lax, neglectful, regardless, remiss, slack
4.
Synonyms: slipshod 3, botchy, messy, slapdash, sloppy, slovenly, unthorough, untidy
5.
Synonyms: slovenly 1, disheveled, messy, raunchy, slipshod, sloppy, unfastidious, unkempt, unneat, untidy