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English definition of “hysterical”

hysterical

adjective     /hɪˈster.ɪ.kəl/
C1 unable to control your feelings or behaviour because you are extremely frightened , angry , excited , etc.: Calm down, you're getting hysterical. The police were accused of hysterical over-reaction. hysterical laughter (= uncontrolled laughter )Becoming too excited and easily upsetMental and psychiatric disorders informal extremely funny : His last film was hysterical.Humour and humorous hysterically     /-i/ adverb She started laughing / crying hysterically (= without control ).Becoming too excited and easily upsetMental and psychiatric disorders
(Definition of hysterical adjective from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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