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English definition of “maturity”

maturity

noun [U] (MENTAL DEVELOPMENT)    /məˈtjʊə.rɪ.ti/ US  /-ˈtʊr.ə.t̬i/
the quality of behaving mentally and emotionally like an adultPhysically and mentally mature and immature a very advanced or developed form or statePhysically and mentally mature and immature
(Definition of maturity noun (MENTAL DEVELOPMENT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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