Definition of impossibility noun from the Oxford Advanced Learner's Dictionary

     

    impossibility

     noun
    noun
    BrE BrE//ɪmˌpɒsəˈbɪləti//
     
    ; NAmE NAmE//ɪmˌpɑːsəˈbɪləti//
     
    (pl. impossibilities)
     
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  1. 1[uncountable] impossibility (of something/of doing something) the fact of not being possible the sheer impossibility of providing enough food for everyone opposite possibility (1)
  2. 2[countable, usually singular] something that is not possible a virtual impossibility a physical impossibility opposite possibility (2)