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English definition of “frivolity”

frivolity

noun [C or U]     /frɪˈvɒl.ə.ti/ US  /-ˈvɑː.lə.t̬i/
behaviour that is silly and not serious, or things that are silly and not important: You shouldn't treat such a serious subject with frivolity. I'm far too busy to waste time on frivolities like going to the cinema.Not showing careful thought
(Definition of frivolity noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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