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

     

    unanswerable

     adjective
    adjective
    BrE BrE//ʌnˈɑːnsərəbl//
     
    ; NAmE NAmE//ʌnˈænsərəbl//
     
     
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  1. 1an unanswerable argument, etc. is one that nobody can question or disagree with synonym irrefutable They presented an unanswerable case for more investment.
  2. 2an unanswerable question is one that has no answer or that you cannot answer
See the Oxford Advanced American Dictionary entry: unanswerable