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

With 20th Television increasingly focused on supplying Disney platforms, integrating the two areas would not be unreasonable.

— Nellie Andreeva, Deadline, 5 Nov. 2026
Frimpong concluded that plaintiffs were likely to prove the practice violated the 4th Amendment’s protection against unreasonable seizures and the 5th Amendment’s guarantee of equal protection.

— Brittny Mejia, Los Angeles Times, 29 Oct. 2026

Definition of unreasonable

Adjective

The Blackburn team is focused on the transition, not entertaining baseless speculation.

— Molly Parks, The Washington Examiner, 6 Nov. 2026
Ethiopia’s Foreign Ministry rejected similar Sudanese accusations in a May 5 statement, calling them baseless, and accused Sudan of supporting rebels in its northern Tigray region.

— ABC News, ABC News, 4 Nov. 2026

Definition of baseless

Adjective

Still, a bullish case for Alphabet rests not in its post-earnings concerns being unfounded, but rather on its growth being strong enough to withstand them.

— Julia Spina, CNBC, 10 Nov. 2026
Congressional scrutiny can rattle investors, embolden activists, invite shareholder lawsuits, stimulate state enforcement and provoke consumer backlash, even when accusations prove unfounded.

— Adonis Hoffman, Washington Post, 5 Nov. 2026

Definition of unfounded

Adjective

Ye Khaung Kyaw and the two other men charged in connection with the case have said the accusations against them are groundless.

— Arkansas Online, Arkansas Online, 24 Sep. 2026
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

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 Nov. 2026.

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Synonyms of foundationless

adjective

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