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
One Democrat member even made the unsubstantiated argument that laws to keep trans athletes out of girls' sports would result in genital inspections of children.
—
Jackson Thompson, FOXNews.com, 22 May 2025
Immigration authorities may reject frivolous or unsubstantiated cases.
—Antonio Maria Delgado, Miami Herald, 19 May 2025
The agency investigated once but found the claims to be unsubstantiated, according to a state child welfare report cited by the outlet.
—Brenton Blanchet, People.com, 9 May 2025
Last month, Ye was criticized for making comments about Jay-Z and Beyoncé’s 7-year-old kids Rumi and Sir Carter during an explosive X tirade, where West questioned the twins’ mental abilities and made unsubstantiated claims about in vitro fertilization.
—Angel Diaz, Billboard, 21 Apr. 2025
See All Example Sentences for unsubstantiated
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Jackson Thompson, FOXNews.com, 22 May 2025
Immigration authorities may reject frivolous or unsubstantiated cases.
—Antonio Maria Delgado, Miami Herald, 19 May 2025
The agency investigated once but found the claims to be unsubstantiated, according to a state child welfare report cited by the outlet.
—Brenton Blanchet, People.com, 9 May 2025
Last month, Ye was criticized for making comments about Jay-Z and Beyoncé’s 7-year-old kids Rumi and Sir Carter during an explosive X tirade, where West questioned the twins’ mental abilities and made unsubstantiated claims about in vitro fertilization.
—Angel Diaz, Billboard, 21 Apr. 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 2 Jun. 2025.
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