adjective
failing to give proper attention or care
negligent in taking care of the children
a negligent man, prone to forgetfulness
Synonyms: behindhand, careless, delinquent, derelict, discinct, disregardful, lax, neglectful, regardless, remiss, slack
Related Word: heedless, inadvertent, inattentive, inconsiderate, thoughtless, unheedful, unthinking; incurious, indifferent, unconcerned; slipshod, slovenly
Contrasted words: rigid, rigorous, strict; attentive, considerate, heedful, thoughtful; careful, exact, fussy, meticulous, punctilious, punctual, scrupulous
Antonyms: attentive