I. adjective
1.
having attained the normal peak of natural growth and development
mature plants ready to bear fruit
Synonyms: adult, full-blown, full-fledged, full-grown, grown, grown-up, matured, ripe, ripened
Related Word: developed, ready
Idioms: of age
Contrasted words: childish, childlike; boyish, green, juvenile, maiden, puerile, youthful
Antonyms: immature
2.
Synonyms: due 2, payable
3.
Synonyms: unpaid 2, due, outstanding, overdue, owing, payable, unsettled
II. verb
to become fully developed or ripe
she matured as an actress after several years of summer stock
Synonyms: age, develop, grow, grow up, maturate, mellow, ||ripe, ripen
Related Word: blossom, flower; advance, progress, round; season; decline, deteriorate, olden, wane
Idioms: come of age