adjective

illegitimate

illegitimate, unlawful, illogical, born out of wedlock

The government was declared illegitimate.

The government was declared illegitimate.

That is an illegitimate argument.

That is an illegitimate argument.

illegitimate ((noun)) not allowed by law or rules; not logical The government was declared illegitimate.

Synonyms: unlawful, invalid; Antonyms: legitimate, lawful, valid

From the prefix 'il-' (not) + 'legitimate' (lawful, valid). It means 'not legitimate'.

Like 'illegal', the prefix 'il-' means 'not'. So, 'illegitimate' is 'not legitimate'.

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