Synonyms of grown-up in English:

grown-up


See definition of grown-up

noun

1‘she wanted to be treated like a grown-up’

SYNONYMS
adult, grown person, grown-up person, mature person
woman, grown woman, mature woman, man, grown man, mature man, lady, gentleman
ANTONYMS

child


adjective

1‘Christine has two grown-up daughters and seven grandchildren’

SYNONYMS
adult, mature, of age, having reached one's majority
fully grown, full-grown, fully developed, fully fledged
ANTONYMS

infant, juvenile