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English definition of “puerile”


adjective     /ˈpjʊə.raɪl/ US  /ˈpjʊr.ɪl/ disapproving
behaving in a silly way, not like an adult: I find his sense of humour rather puerile.Physically and mentally mature and immatureStupid and sillyOf unsound mind puerility     /pjʊəˈrɪl.ɪ.ti/ US  /pjʊrˈɪl.ə.t̬i/ noun [U]
(Definition of puerile adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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