mature
ma-ture
verb
To reach full growth or development; to become due for payment.
"The cheese needs time to mature."
adjective
Fully grown or developed; showing adult characteristics or wisdom.
"She is very mature for her age."
Thesaurus
Synonyms: get on, maturate, senesce, age, autumnal, ripe, matured, developed, suppurate, fledged, fledgeling, fully fledged