unexplained

adjective

un·​ex·​plained ˌən-ik-ˈsplānd How to pronounce unexplained (audio)
: not explained or accounted for
an unexplained error
an unexplained delay

Examples of unexplained in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
For years, Selma Blair battled unexplained pain and crippling fatigue while doctors dismissed her symptoms. Stephanie Giang-Paunon, FOXNews.com, 14 Oct. 2025 However, a few unexplained puzzles remained, leading scientists to question whether the most extreme predictions of the Big Bang, including arbitrarily high temperatures and an origin from a singularity, were actually correct. Big Think, 14 Oct. 2025 The incident comes amid high tensions between Moscow and NATO, and follows a string of unexplained drone incursions into NATO territory—some of which have been blamed on Russia. Barney Henderson, MSNBC Newsweek, 13 Oct. 2025 But even if that purported lunar companion proves illusory, this new method of tracking down mysterious sources of unexplained material around giant exoplanets could become a definitive pathway for future exomoon finds. Nola Taylor Tillman, Scientific American, 13 Oct. 2025 See All Example Sentences for unexplained

Word History

First Known Use

1721, in the meaning defined above

Time Traveler
The first known use of unexplained was in 1721

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Cite this Entry

“Unexplained.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unexplained. Accessed 23 Oct. 2025.

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