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

     

    capricious

     adjective
    adjective
    BrE BrE//kəˈprɪʃəs//
     
    ; NAmE NAmE//kəˈprɪʃəs//
     
    (formal)
     
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  1. 1showing sudden changes in attitude or behaviour synonym unpredictable a movie star who was capricious and difficult to please
  2. 2changing suddenly and quickly synonym changeable a capricious climate They had to contend with capricious economic forces.
  3. Word Origin early 17th cent.: from French capricieux, from Italian from capriccio, literally ‘head with the hair standing on end’, hence ‘horror’, later ‘a sudden start’ (influenced by capra ‘goat’, associated with frisky movement), from capo ‘head’ + riccio ‘hedgehog’.
See the Oxford Advanced American Dictionary entry: capricious