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Definition of legitimacy
legitimacy
/ləˈdʒɪt.ə.mə.si/
le · git · i · ma · cy
Adverb:legitimately
•Plural:legitimacies
•Adjective:legitimate
legitimacy Lexical Profile
CEFR
C1
Grade
10
Tier
2
Usage
Top 5k
Syllables
5
legitimacy Game Scores & Validity
Scrabble US
Scrabble UK
WWF
Wordle Guess
• noun
1
Conformity to the law or to established rules, standards, or principles; the quality of being valid, rightful, or justifiable.
Example
"International observers were invited to monitor the election and verify the legitimacy of the final vote count."
2
The legal status of a child born to parents who are lawfully married to each other.
Example
"Under the historical inheritance laws of the kingdom, establishing the legitimacy of the heir was essential for royal succession."
Synonyms
View all synonyms for legitimacy Antonyms
View all antonyms for legitimacy• Rhymes for legitimacy
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Word Origin & Etymology
Formed in English from 'legitimate' and the noun-forming suffix '-cy', ultimately deriving from Medieval Latin 'legitimatus', from Latin 'legitimus' ('lawful, appointed by law'), which is rooted in 'lex' (genitive 'legis', meaning 'law').
Cite this Entry
Wordmom. (2026). Definition of Legitimacy. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/legitimacy