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

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

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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 Many of these unsubstantiated threats were made on social media. Talia Richman, baltimoresun.com, "Loyola Blakefield closes school in response to 'threatening posts on social media'," 30 Apr. 2018 An independent commission tasked with investigating the attacks concluded that allegations about Saudi officials’ role were unsubstantiated. Rebecca Ballhaus, WSJ, "Trump’s Big Bet on Saudis Now Poses a Bigger Dilemma," 25 Oct. 2018 The inspection conducted Wednesday at MCI-Norfolk found the complaints to be unsubstantiated, Scales said. Laura Crimaldi, BostonGlobe.com, "Health inspectors visit prisons after receiving complaints about heat," 13 July 2018 One person familiar with the matter from the ESPN side, who spoke on the condition of anonymity due to the sensitivity of the discussions, called the story overblown and said the speculation of his departure was unsubstantiated. Dan Wolken, USA TODAY, "Paul Finebaum's potential departure is biggest storyline in the SEC as media day nears," 10 July 2018 Rani Stutz, spokeswoman for Avantara, also said the threat was unsubstantiated. Jennifer Johnson, chicagotribune.com, "Police looking for parolee who allegedly made bomb threat against Park Ridge nursing facility," 13 June 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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Last Updated

15 Dec 2018

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Time Traveler for unsubstantiated

The first known use of unsubstantiated was circa 1775

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