Mature
Adult
Synonyms: Adult, grown, full-grown, fully developed, in one's prime, nubile, grown-up, fully grown, of age, fully fledged, and in full bloom.
Sensible
Synonyms: Sensible, adult, reliable, discriminating, practical, sagacious, sophisticated, responsible, level-headed, dependable, shrewd, wise, and experienced.
Careful
Develop
Synonyms: Be fully grown, be fully developed, come of age, reach adulthood, develop, evolve, blossom, thrive, be full-grown, develop fully, become adult, reach maturity, grow, bloom, flourish, and come to fruition.
Ripen
Synonyms: Ripen, become ripe, become mellow, grow ripe, mellow, and age.
Example Sentences
She has a mature perspective.
The tree is now mature.
He is mature for his age.
They have a mature relationship.
The wine needs to mature.