unsubstantiated

adjective

un·​sub·​stan·​ti·​at·​ed ˌən-səb-ˈstan(t)-shē-ˌā-təd How to pronounce unsubstantiated (audio)
: 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 The feud had all the makings of a 21st Century beef: quick responses.; Artificial Intelligence; unsubstantiated tea about plastic surgery, pedophilia and domestic abuse (more on the last two later); immediate social media dissection. C. Isaiah Smalls Ii, Miami Herald, 9 May 2024 The biggest rap feud in years has increasingly become vitriolic and personal and has seen both Drake and Lamar throw unsubstantiated allegations at each other. Etan Vlessing, The Hollywood Reporter, 7 May 2024 See all Example Sentences for unsubstantiated 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'unsubstantiated.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

circa 1775, in the meaning defined above

Time Traveler
The first known use of unsubstantiated was circa 1775

Dictionary Entries Near unsubstantiated

Cite this Entry

“Unsubstantiated.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsubstantiated. Accessed 15 May. 2024.

More from Merriam-Webster on unsubstantiated

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