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.
Signals without answers The second release features around 50 new videos and documents, including first-hand accounts from military personnel and civilians describing unexplained aerial activity. Neetika Walter, Interesting Engineering, 22 May 2026 Suffolk County lawmakers are now calling for a full review of the case, since schools are expected to contact Child Protective Services when there are repeated, unexplained absences combined with warning signs. Carolyn Gusoff, CBS News, 22 May 2026 Henker added that how the coin ultimately made its way to Berlin remains unexplained. Andrea Margolis, FOXNews.com, 19 May 2026 The symptoms include diarrhea, vomiting and unexplained bleeding. Eduardo Cuevas, USA Today, 18 May 2026 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 27 May. 2026.

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