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.
Conversely, unexplained weight loss should prompt a conversation with a healthcare provider. — Faye Chiu, CNN Money, 26 Aug. 2026 With the capability of observing the cosmos with a wide field of view, Roman will generate first-of-their-kind images to help astronomers explore some of the greatest mysteries, including the unexplained expansion of the universe, according to NASA. — Eric Lagatta, USA Today, 25 Aug. 2026 This was evident during a recent game against the New York Yankees when rookie Cam Schlittler caused an unexplained delay. — Peter Chawaga, Forbes.com, 23 Aug. 2026 In 2015, a senior doctor began to express concern over a higher number of unexplained infant deaths at the Countess of Chester Hospital in Chester, England. — Emily Blackwood, PEOPLE, 21 Aug. 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

Rhymes for unexplained

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Browse Nearby Words

unexplainably
unexplained
unexplicit
See all Nearby Words

Cite this Entry

“Unexplained.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unexplained. Accessed 1 Sep. 2026.

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