Definition of doubtfully adverb from the Oxford Advanced Learner's Dictionary

     

    doubtfully

     adverb
    adverb
    BrE BrE//ˈdaʊtfəli//
     
    ; NAmE NAmE//ˈdaʊtfəli//
     
     
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  1. 1in a way that shows that you are uncertain and feeling doubt synonym dubiously (1) She looked at him doubtfully.
  2. 2in a way that is unlikely to happen or be true This poem has been doubtfully attributed to Swift.