Synonyms: negligent
Definition: characterized by neglect and undue lack of concern
Usage: negligent parents; negligent of detail; negligent in his correspondence
Similar words: neglectful, delinquent, derelict, remiss
Definition: failing in what duty requires
Usage: derelict (or delinquent) in his duty; neglectful of his duties; remiss of you not to pay your bills
Definition: lacking in rigor or strictness
Usage: such lax and slipshod ways are no longer acceptable; lax in attending classes; slack in maintaining discipline
Similar words: hit-and-run
Definition: involving a driver of a motor vehicle who leaves the scene of an accident
Similar words: inattentive, neglectful
Definition: not showing due care or attention
Usage: inattentive students; an inattentive babysitter; neglectful parents