Definition of fanatical adjective from the Oxford Advanced Learner's Dictionary

     

    fanatical

     adjective
    adjective
    BrE BrE//fəˈnætɪkl//
     
    ; NAmE NAmE//fəˈnætɪkl//
     
     
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  1. 1(informal) extremely enthusiastic a fanatical supporter of the team their fanatical devotion to the show fanatical about something She's fanatical about healthy eating.
  2. 2holding or connected with extreme or dangerous opinions synonym extremist fanatical anti-royalists a fanatical right-wing organization fanatical views