as in unreasonable
having no basis in reason or fact
an unsubstantiated claim that was thrown out of court
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Recent Examples of unsubstantiated
The agency found the abuse allegations to be unsubstantiated either due to a lack of evidence or Thompson and his daughter both denying ongoing violence in the home.
—
Quinlan Bentley, The Enquirer, 2 July 2025
The number of people missing since the July 4 floods in Texas dropped to three this weekend as authorities recovered victims, located those who turned out to be safe, and unmasked a few unsubstantiated or falsified reports, officials said.
—Theresa Braine, New York Daily News, 20 July 2025
The Warrens, and later Spera, were fond of recounting a macabre (albeit unsubstantiated) tale about a museum guest who spurned their warnings and taunted Annabelle.
—Declan Gallagher, EW.com, 16 July 2025
The Federal Trade Commission has been cracking down on false or unsubstantiated marketing around such claims in recent years, forcing some companies to pay thousands, if not millions, of dollars for misleading consumers.
—Bailey Schulz, USA Today, 11 July 2025
See All Example Sentences for unsubstantiated
Quinlan Bentley, The Enquirer, 2 July 2025
The number of people missing since the July 4 floods in Texas dropped to three this weekend as authorities recovered victims, located those who turned out to be safe, and unmasked a few unsubstantiated or falsified reports, officials said.
—Theresa Braine, New York Daily News, 20 July 2025
The Warrens, and later Spera, were fond of recounting a macabre (albeit unsubstantiated) tale about a museum guest who spurned their warnings and taunted Annabelle.
—Declan Gallagher, EW.com, 16 July 2025
The Federal Trade Commission has been cracking down on false or unsubstantiated marketing around such claims in recent years, forcing some companies to pay thousands, if not millions, of dollars for misleading consumers.
—Bailey Schulz, USA Today, 11 July 2025
See All Example Sentences for unsubstantiated
Recent Examples of Synonyms for unsubstantiated
Adjective
-
Barbara Attard, a police accountability expert, said meet and confer can last months, but beyond a year is unreasonable.—
Kelly Davis,
San Diego Union-Tribune,
25 July 2025
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His exact demands are unknown but given his status as one of the world’s leading players a range of £250,000 to £300,000 a week is far from unreasonable.—
Chris Weatherspoon,
New York Times,
25 July 2025
Adjective
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Still, any rumors of a falling-out with Sánchez appear to be unfounded.—
Heather Hunter,
The Washington Examiner,
30 July 2025
-
However, a rep for Collins confirmed to TMZ that those rumors are unfounded.—
Jessica Lynch,
Billboard,
28 July 2025
Adjective
-
Dugan went beyond 'official acts' of a judge Prosecutors countered that the defense's judicial immunity argument is flawed and unsupported by legal precedent.—
John Diedrich,
jsonline.com,
30 July 2025
-
Legal experts previously told Newsweek that the allegations were unsupported and expressed skepticism that Obama could be arrested.—
Dan Gooding
Gabe Whisnant,
MSNBC Newsweek,
22 July 2025
Cite this Entry
“Unsubstantiated.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unsubstantiated. Accessed 6 Aug. 2025.
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