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.
The Air Force took this case seriously under Project Blue Book, officially classifying it as ‘unexplained’ after finding no evidence of a hoax. Atharva Gosavi, Interesting Engineering, 3 Sep. 2025 There’s a lot of great stuff in this game buried under a lot of unexplained and unnecessary content. Ollie Barder, Forbes.com, 2 Sep. 2025 When an unexplained death happens to coincide with the potential demolition of the seniors' residence, the four spring into action in hopes of solving the mystery and saving their home. Ralphie Aversa, USA Today, 29 Aug. 2025 Project, an initiative established to analyze unexplained radio signals from space in the search for extraterrestrial intelligence. Leonard David, Space.com, 27 Aug. 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 9 Sep. 2025.

Last Updated: - Updated example sentences
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