adj. 25B6; adjective
a mature woman : ADULT, grown-up, grown, fully grown, full-grown, of age, fully developed, in one's prime.
he's very mature for his age : SENSIBLE, responsible, adult, level-headed, reliable, dependable; wise, discriminating, shrewd, sophisticated.
mature cheese : RIPE, ripened, mellow; ready to eat/drink.
on mature reflection, he decided not to go : CAREFUL, thorough, deep, considered.
adolescent, childish.
25B6; verb
kittens mature when they are about a year old : BE FULLY GROWN, be full-grown; come of age, reach adulthood, reach maturity.
he's matured since he left home : GROW UP, become more sensible/adult; blossom.
leave the cheese to mature : RIPEN, mellow; age.
their friendship didn't have time to mature : DEVELOP, grow, evolve, bloom, blossom, flourish, thrive.