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
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Meanwhile, the day-shifters all abruptly acquire eye-black face paint for some unexplained reason. Tasha Robinson, Vulture, 16 June 2026 Reports of strange sounds, apparitions, and unexplained encounters continue to attract visitors. Kaif Shaikh, Interesting Engineering, 15 June 2026 The technologies and biology of the extraterrestrials are left largely unexplained, with the plot focusing less on those details and more on how humanity reacts to their existence. Jack Smart, PEOPLE, 12 June 2026 The new documents, photos, drawings and videos add to the government's rapidly expanding archive of unexplained sightings, known in official parlance as UAPs, or Unidentified Anomalous Phenomena. Josh Meyer, USA Today, 12 June 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

Browse Nearby Words

Cite this Entry

“Unexplained.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unexplained. Accessed 17 Jun. 2026.

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