- 1born to parents who are not married to each other
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- 2not allowed by a particular set of rules or by law synonym unauthorized illegitimate use of company property opposite legitimate
NAmE//ˌɪləˈdʒɪt̮əməsi//
noun [uncountable] Illegitimacy no longer carries the same social stigma. adverbSee illegitimate in the Oxford Advanced Learner's Dictionary
Check pronunciation: illegitimate