unsubstantiated
adjective
un·sub·stan·ti·at·ed
ˌən-səb-ˈstan(t)-shē-ˌā-təd 
: not proven to be true : not substantiated
an unsubstantiated rumor/report
a plausible but unsubstantiated theory
Examples of unsubstantiated in a Sentence
an unsubstantiated claim that was thrown out of court
Recent Examples on the Web
However, the agency has typically gone after only those companies making unsubstantiated health claims or marketing their products to kids, Jonathan Havens, a cannabis attorney at the law firm Saul Ewing, told me.
—
Nicholas Florko, The Atlantic, 21 Nov. 2025
The SARsfilings are required under the Bank Secrecy Act, and regulators warn on the actual bank forms that the reports are confidential and contain unsubstantiated allegations of possible criminal activity.
—Antonio Maria Delgado, Miami Herald, 7 Nov. 2025
There have been anti-China rallies in downtown Seoul in recent months, where protesters chanted racist slurs and made unsubstantiated claims of Chinese inference in South Korean politics.
—Se Eun Gong, NPR, 2 Nov. 2025
The Amityville Horror, a somewhat underrated flick, is based on the real-life Lutz's unsubstantiated claim that the house was actually haunted.
—Steven Thrash, Entertainment Weekly, 25 Oct. 2025
See All Example Sentences for unsubstantiated
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Nicholas Florko, The Atlantic, 21 Nov. 2025
The SARsfilings are required under the Bank Secrecy Act, and regulators warn on the actual bank forms that the reports are confidential and contain unsubstantiated allegations of possible criminal activity.
—Antonio Maria Delgado, Miami Herald, 7 Nov. 2025
There have been anti-China rallies in downtown Seoul in recent months, where protesters chanted racist slurs and made unsubstantiated claims of Chinese inference in South Korean politics.
—Se Eun Gong, NPR, 2 Nov. 2025
The Amityville Horror, a somewhat underrated flick, is based on the real-life Lutz's unsubstantiated claim that the house was actually haunted.
—Steven Thrash, Entertainment Weekly, 25 Oct. 2025
See All Example Sentences for unsubstantiated
Cite this Entry
“Unsubstantiated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsubstantiated. Accessed 28 Nov. 2025.
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