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

     

    shrillness

     noun
    noun
    BrE BrE//ˈʃrɪlnəs//
     
    ; NAmE NAmE//ˈʃrɪlnəs//
     
    [uncountable]
     
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  1. 1the quality of being very high and loud, in an unpleasant way the shrillness of her voice
  2. 2the quality of being loud and determined but often unreasonable the shrillness of political rhetoric