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English definition of “frivolous”

frivolous

adjective     /ˈfrɪv.əl.əs/
behaving in a silly way and not taking anything seriously: I think he sees her as a frivolous young woman.Not showing careful thought describes an activity or object that is silly or not important rather than useful or serious: I feel like doing something completely frivolous today.Useless and futile frivolously     /-li/ adverb Not showing careful thought frivolousness     /-nəs/ noun [U] Useless and futileStupid and silly behaviour
(Definition of frivolous adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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