GROWN-UP
Meaning of GROWN-UP in English
adjective
Synonyms: mature 1, adult, full-blown, full-fledged, full-grown, grown, matured, ripe, ripened
Antonyms: childish; callow
Merriam Webster.
Collegiate thesaurus English vocabulary.
Английский энциклопедический словарь тезаурус.
2003