adj. 25B6; adjective NEGLECTFUL, remiss, careless, lax, irresponsible, inattentive, heedless, thoughtless, unmindful, forgetful; slack, sloppy; N. Amer. derelict; formal delinquent.
dutiful.
NEGLIGENT
Meaning of NEGLIGENT in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012