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English definition of “frightening”

frightening

adjective     /ˈfraɪ.tən.ɪŋ/
B1 making you feel fear : a frightening thought a frightening film It is frightening to think what might happen if she left him.Describing things that cause fear frighteningly     /-li/ adverb She looked frighteningly thin .Describing things that cause fear
(Definition of frightening adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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