Synonyms of mature in English:

adult, grown-up, grown, fully grown, full-grown, of age, fully developed, fully fledged, in one's prime, in full bloom, nubile

sensible, responsible, adult, level-headed, reliable, dependable

discriminating, shrewd, practical, wise, sagacious, experienced, sophisticated

ripe, ripened, mellow, ready, seasoned, full-flavoured

careful, thorough, deep, considered, methodical

be fully grown, be full-grown, be fully developed, develop fully, come of age, become adult, reach adulthood, reach maturity

become more adult, become more responsible, become more sensible, grow up

bloom, blossom

ripen, grow ripe, become ripe, mellow, become mellow, age

develop, grow, evolve, bloom, blossom, flourish, thrive, come to fruition