unsubstantiated
Americanadjective
-
not substantiated; unproved or unverified.
unsubstantiated allegations.
-
being without form or substance.
adjective
Etymology
Origin of unsubstantiated
First recorded in 1765–75; un- 1 + substantiate + -ed 2
Vocabulary lists containing unsubstantiated
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
They made numerous unsubstantiated allegations that she had exercised control over their father.
From MarketWatch ● Nov. 9, 2026
Myanmar has denied deliberately trying to destroy the minority Muslim population, with a government representative telling the court in January that the allegation was "unsubstantiated".
From BBC ● Oct. 9, 2026
Italy's government says the country's largest steel works must be converted to electric after a court-ordered shutdown of polluting furnaces but, as Rome seeks a buyer, critics say its plan is woefully unsubstantiated.
From Barron's ● Sep. 17, 2026
In its statement Tuesday, the county said he “has made and continues to make unsubstantiated accusations of illegal activities against employees without due process or an investigation.”
From Los Angeles Times ● Aug. 26, 2026
“Objection! Your Honor, I object to this wild unsubstantiated testimony.”
From "Mississippi Trial, 1955" by Chris Crowe
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
