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adjective Uncommon

illegitimate

ih-lih-JIH-tih-muht

Illegitimate (adjective) means not legally or officially sanctioned; not proper or authorised. Example: “The opposition called the election result illegitimate.”

adjective
1
Not legally or officially sanctioned; not proper or authorised.
"The opposition called the election result illegitimate."
"They questioned the illegitimate use of company funds."
2
Dated: born to parents who were not married to each other.
"In earlier centuries, an illegitimate child could be denied inheritance rights."

How to use illegitimate

Learner’s notes

In plain EnglishNot legitimate — lacking legal or official standing, or (in older usage) born outside marriage.

Common pairings
illegitimate claim illegitimate authority illegitimate use

Word forms

more illegitimate comparative, illegitimated past tense, illegitimates plural, illegitimates singular, most illegitimate superlative

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The opposition called the election result _____.

Etymology

From Latin illegitimus, formed from in- ("not") plus legitimus ("lawful"), likely via Middle French illegitime.

Origin: Latin

Related words

Rhymes for illegitimate

See all rhymes for illegitimate →

Frequently asked questions

What does “illegitimate” mean?

The word “illegitimate” means not legally or officially sanctioned; not proper or authorised. In plain terms, not legitimate — lacking legal or official standing, or (in older usage) born outside marriage.

How do you pronounce “illegitimate”?

“Illegitimate” is pronounced ih-lih-JIH-tih-muht ([ɪlɨˈd͡ʒɪɾəmɨt] in IPA).

How do you use “illegitimate” in a sentence?

Here is “illegitimate” used in a sentence: “The opposition called the election result illegitimate.”

What is another word for “illegitimate”?

Words with a similar meaning to “illegitimate” include base, baseborn, base born, bastardly, extramarital and misbegotten.

What is the opposite of “illegitimate”?

The opposite of “illegitimate” — its antonyms — is legitimate.

What part of speech is “illegitimate”?

“Illegitimate” is an adjective.

Where does the word “illegitimate” come from?

The word “illegitimate” comes from Latin. From Latin illegitimus, formed from in- ("not") plus legitimus ("lawful"), likely via Middle French illegitime.

Is “illegitimate” a common word?

“Illegitimate” is an uncommon word in modern English.

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