Find Antonyms

illegitimacy Antonyms

Opposite of illegitimacy

Because the opposite of illegitimacy shifts with each meaning, the antonyms and opposite words below are separated across 2 exact definitions and ranked by contrast strength.
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• noun (Context 1)

The state or quality of not being authorized by law or not being in accordance with accepted standards, rules, or logic.

Usage Example

"Critics argued that the widespread electoral fraud proved the legitimacy of the newly formed regime."

Strongest
legitimacy
lawfulness
legality
validity
Strong
rightfulness

• noun (Context 2)

The condition of being born to parents who are not married to each other.

Usage Example

"In Victorian society, the social stigma surrounding legitimacy often prevented children from inheriting family estates."

Strongest
legitimacy

Similar words to illegitimacy

Words similar to illegitimacy shift depending on context. Common synonyms include:

unlawfulness
bastardy
illegality
invalidity
illicitiveness
spuriousness
illicitly
See all synonyms of illegitimacy

• Nearby Words

illegibility
illegible
illegibly
illegitimacy
illegitimate
illegitimately
illiberal

Cite this Entry

Wordmom. (2026). Antonyms for Illegitimacy. In Wordmom Thesaurus. Retrieved Nov 5, 2026, from https://wordmom.com/antonyms/illegitimacy
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