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



    (especially British English) (usually North American English willful) adjective
    BrE BrE//ˈwɪlfl//
    ; NAmE NAmE//ˈwɪlfl//
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  1. 1[usually before noun] (formal, disapproving or law) (of a bad or harmful action) done deliberately, although the person doing it knows that it is wrong wilful damage The report concluded that her death was a result of wilful neglect.
  2. 2determined to do what you want; not caring about what other people want synonym headstrong a wilful child
  3. Word OriginMiddle English: from the noun will + -ful.
See the Oxford Advanced American Dictionary entry: wilful