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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.
However, the revelation of his links to the agency combined with unexplained Google search activity has sparked widespread online speculation. Alia Shoaib, MSNBC Newsweek, 27 Nov. 2025 When one daughter suddenly suffers unexplained fainting spells, their choice is shaken. John Hopewell, Variety, 25 Nov. 2025 Healthy adults that these people knew were coming down with unexplained medical conditions, including diseases and cancers that usually afflicted the elderly. Sean Patrick Cooper, Rolling Stone, 24 Nov. 2025 These include frequent unexplained injuries, chronic lack of supervision, new adults entering the home without explanation, ongoing exhaustion after transitions, or a child who suddenly seems fearful or withdrawn. Jann Blackstone, Boston Herald, 23 Nov. 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 3 Dec. 2025.

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