Meaning of GROWN-UP in English
25B6; noun she wanted to be treated like a grown-up : ADULT, (grown) woman, (grown) man, mature woman, mature man.
25B6; adjective she has two grown-up daughters : ADULT, mature, of age; fully grown, full-grown, fully developed.
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012