un·​sub·​stan·​ti·​at·​ed | \ ˌən-səb-ˈstan(t)-shē-ˌā-təd How to pronounce unsubstantiated (audio) \

Definition of unsubstantiated

: not proven to be true : not substantiated an unsubstantiated rumor/report a plausible but unsubstantiated theory

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Examples of unsubstantiated in a Sentence

Recent Examples on the Web

There are also curious and unsubstantiated reports of deep-sea fish burning up in the magma shift. David Grossman, Popular Mechanics, "French Island Might Be Sitting On Top of Gigantic Underwater Magma Shift," 20 Mar. 2019 But given omnipresent and unsubstantiated Republican warnings of voter fraud and election theft, the situation unfolding in the North Carolina Ninth is, if nothing else, rather remarkable. Dylan Scott, Vox, "There’s something very weird going on with this North Carolina House election," 30 Nov. 2018 But in the spirit of serving the public conversation, CNN’s Oliver Darcy decided to document some of those unsubstantiated rumors of Alex Jones’. Casey Newton, The Verge, "Twitter’s case for keeping Alex Jones is falling apart," 10 Aug. 2018 No one should have their professional reputation ruined by unsubstantiated rumors or be tried in the press where they are assumed guilty until proven innocent. Bethany Barnes, OregonLive.com, "Investigators say Portland teacher contract endangers children," 11 May 2018 In the 14 years since, the girls’ lives have been enveloped in secrecy—broken very occasionally by unsubstantiated rumors. Owen Matthews, Newsweek, "The Top Secret Family Life of Vladimir Putin," 19 Aug. 2014 There is an obvious irony in a Republican campaign being tarnished by allegations of election fraud after the GOP spent last month peddling unsubstantiated claims of voter fraud in Florida and Arizona. Dylan Scott, Vox, "What we know about the alleged election fraud plot in North Carolina," 8 Dec. 2018 The judge’s supporters (and the judge himself) say he has been unfairly forced to defend his reputation against unsubstantiated accusations. Celeste Katz, Glamour, "The Brett Kavanaugh Hearings Could Change Sexual Assault Reporting—but How?," 28 Sep. 2018 In other words, trans people are misunderstood, and this unsubstantiated fear has legitimate consequences for trans individuals. Vogue, "Teddy Quinlivan: Why I’m Standing Up Against Trump’s Anti-Trans Agenda," 26 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unsubstantiated.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of unsubstantiated

circa 1775, in the meaning defined above

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Time Traveler for unsubstantiated

The first known use of unsubstantiated was circa 1775

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English Language Learners Definition of unsubstantiated

formal : not proven to be true

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showing courage and determination

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