FOUNDATIONLESS Synonyms: 92 Similar and Opposite Words

foundationless

adjective

Definition of foundationless

as in unreasonable

having no basis in reason or fact a careful investigation proved that the charges were foundationless

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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.

Recent Examples of foundationless Buying a foundationless house is not the only real-estate mistake Handler has made. — Kim Velsey, Curbed, 11 Mar. 2026

Recent Examples of Synonyms for foundationless

Adjective

The imposition of the tariffs stemmed from a breakdown in negotiations between the two countries in August, with each claiming the other side had unreasonable requests that would be detrimental to their respective country’s workers.

— Washington Examiner Staff, The Washington Examiner, 8 Sep. 2026
Drop one task that doesn’t need to happen today, and ask for clarification if a deadline feels unreasonable.

— Tarot.com, Baltimore Sun, 7 Sep. 2026

Definition of unreasonable

Adjective

Enough is enough -- this spread of blatant and baseless falsehoods must stop.

— Mike Toole, CBS News, 8 Sep. 2026
At Friday’s hearing, Hearn’s lawyer Levin argued to Edelman that a dismissal with prejudice was required to protect Hearn from being indicted again on baseless charges.

— Dan Mangan, CNBC, 4 Sep. 2026

Definition of baseless

Adjective

Social media in South Korea have been filled with messages stoking fears about safety on Jeju, with some spreading groundless rumors and deriding the island.

— Hyung-Jin Kim, Los Angeles Times, 27 Aug. 2026
For Rocha, however, the claims examined in the documentary are groundless — and tiring.

— Johnny Dodd, PEOPLE, 15 July 2026

Definition of groundless

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foundation

foundationless

foundations

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“Foundationless.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/foundationless. Accessed 15 Sep. 2026.

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Synonyms of foundationless

adjective

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