hysterical - definition and synonyms

 
adjective 

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/hɪˈsterɪk(ə)l/
  1. 1
    behaving in an uncontrolled way because you are extremely excited, afraid, or upset

    She wasn’t hysterical, just crying.

    1. a.
      reacting to something in an unreasonable way

      Media coverage of the issue has been hysterical.

  2. 2
    spoken extremely funny

    He didn’t have a clue what was going on, and we all thought it was hysterical.

derived word

hysterically

 

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/hɪˈsterɪkli/
adverb