as in unreasonable
having no basis in reason or fact
an unsubstantiated claim that was thrown out of court
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Example Sentences
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Recent Examples of unsubstantiated
The investigator found that claim, which was based on Fuhrer’s communication patterns with the department head, was unsubstantiated.
—
Jake Goodrick, Sacbee.com, 27 Mar. 2025
Trump has accused Elias, along with others, of being behind a dossier of unsubstantiated allegations about his links to Russia that were investigated by the FBI during his first campaign for president in 2016.
—Jay Weaver, Miami Herald, 25 Mar. 2025
This is being justified with completely unsubstantiated claims that Social Security is riddled with fraud.
—U T Editorial Board, San Diego Union-Tribune, 21 Mar. 2025
Grad didn’t offer evidence of his claim, and the theory remains publicly unsubstantiated.
—Larry Holder, New York Times, 26 Mar. 2025
See All Example Sentences for unsubstantiated
Jake Goodrick, Sacbee.com, 27 Mar. 2025
Trump has accused Elias, along with others, of being behind a dossier of unsubstantiated allegations about his links to Russia that were investigated by the FBI during his first campaign for president in 2016.
—Jay Weaver, Miami Herald, 25 Mar. 2025
This is being justified with completely unsubstantiated claims that Social Security is riddled with fraud.
—U T Editorial Board, San Diego Union-Tribune, 21 Mar. 2025
Grad didn’t offer evidence of his claim, and the theory remains publicly unsubstantiated.
—Larry Holder, New York Times, 26 Mar. 2025
See All Example Sentences for unsubstantiated
Recent Examples of Synonyms for unsubstantiated
Adjective
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Courts will not second-guess the safety measures employers adopt, even when those measures infringe on an employee’s privacy, unless the measures are unreasonable under the circumstances.—
Dan Eaton,
San Diego Union-Tribune,
21 Apr. 2025
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Companies need to assess their higher costs, and then negotiate with the state regulators who try to protect ratepayers from unreasonable hikes.—
Camila Domonoske,
NPR,
18 Apr. 2025
Adjective
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Some providers diagnosing and treating people with autism have been deluged by requests to scrub their data and cancel appointments, multiple federal health officials told CBS News, over concerns about patient privacy and worries it would be used to support unfounded claims.—
Melissa Gaffney,
CBS News,
25 Apr. 2025
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As for whether a young generation of coders will be harmed by having these tools at their disposal, LeCun was somewhat dismissive, noting that past concerns about things like the calculator turned out to be largely unfounded.—
John Werner,
Forbes.com,
12 Apr. 2025
Adjective
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Although 80% of women are faced with some form of hormonal imbalance, women like my sister often feel unsupported in their wellness journeys.—
Bianca Salonga,
Forbes.com,
14 Apr. 2025
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On March 9, a department insider leaked to Reuters that the CDC planned to study unsupported claims of a link between vaccines and autism.—
Marc Caputo,
Axios,
2 Apr. 2025
Cite this Entry
“Unsubstantiated.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsubstantiated. Accessed 29 Apr. 2025.
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