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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The conversation shifts to his brother Paul Daniel, who passed away in 1990 because of Sudden Infant Death Syndrome, the unexplained loss of an infant under the age of 1. Bryce Miller, San Diego Union-Tribune, 22 Feb. 2025 By that point, Lauren had already noticed her daughter's condition steadily plummeting back down to bad feeds, poor sleep and loud, unexplained screaming. Staff Author, People.com, 21 Feb. 2025 Over the past few weeks, the bank’s longtime president, a popular local businessman named Shan Hanes, had ordered a series of unexplained wire transfers that drained tens of millions of dollars from the bank. David Yaffe-Bellany, New York Times, 19 Feb. 2025 These fault planes, previously unexplained, are now understood to be the result of the tiny quakes occurring deep in the ice. Ella Jeffries, Smithsonian Magazine, 18 Feb. 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 Mar. 2025.

Last Updated: - Updated example sentences
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