Verbs

(v)mature, maturate, growdevelop and reach maturity; undergo maturation“He matured fast”, “The child grew fast”
(v)maturedevelop and work out fully in one's mind“I need to mature my thoughts”
(v)maturebecome due for repayment“These bonds mature in 2005”
(v)ripen, maturecause to ripen or develop fully“The sun ripens the fruit”, “Age matures a good wine”
(v)senesce, age, get on, mature, maturategrow old or older“She aged gracefully”, “we age every day — what a depressing thought!”, “Young men senesce”
(v)suppurate, maturecause to ripen and discharge pus“The oil suppurates the pustules”

Adjectives

(a)maturecharacteristic of maturity“mature for her age”
(s)mature, maturedfully considered and perfected“mature plans”
(a)maturehaving reached full natural growth or development“a mature cell”
(a)ripe, maturefully developed or matured and ready to be eaten or used“ripe peaches”, “full-bodied mature wines”
(a)fledged, mature(of birds) having developed feathers or plumage; often used in combination