supposititious

adjective

sə-ˌpä-zə-ˈti-shəs How to pronounce supposititious (audio)
Definition of supposititiousnext
as in illegitimate
born to a father and mother who are not married entered the world as the supposititious son of a rich lord

Synonyms & Similar Words

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Example Sentences

Recent Examples of Synonyms for supposititious
illegitimate
Adjective
  • None of that is illegitimate, and none of it shows up on a data-residency dashboard.
    — Dr. Aditya Vikram Kashyap, Forbes.com, 22 Sep. 2026
  • The researchers suspect that others were created by AI that either hallucinated or, just like the AI agents browsing their file, couldn’t distinguish between legitimate and illegitimate instructions.
    — Dan Goodin, ArsTechnica, 27 Aug. 2026
Definition of illegitimate
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Browse Nearby Words

suppositious
supposititious
suppress
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Cite this Entry

“Supposititious.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/supposititious. Accessed 9 Oct. 2026.

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