1. (a.) Having arrived at maturity, or to full size and strength; matured; as, an adult person or plant; an adult ape; an adult age.
2. (n.) A person, animal, or plant grown to full size and strength; one who has reached maturity.
Thesaurus Entries
aged, big, full-blown, full-fledged, full-grown, grown, grown up, grown-up, marriable, marriageable, mature, matured, maturescent, nubile, of age, of marriageable age, old, ripe, ripened
