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

     

    legitimacy

     noun
    noun
    BrE BrE//lɪˈdʒɪtɪməsi//
     
    ; NAmE NAmE//lɪˈdʒɪtɪməsi//
     
    [uncountable]
     
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  1. 1the quality of being based on a fair or acceptable reason synonym validity (2) the dubious legitimacy of her argument
  2. 2the quality of being allowed and acceptable according to the law synonym legality (1) I intend to challenge the legitimacy of his claim. opposite illegitimacy (2)
  3. 3the fact that a child's parents are legally married when it is born doubts over the child's legitimacy opposite illegitimacy (1)