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Showing results for unexplained. Search instead for Unexplained fees.
Synonyms

unexplained

British  
/ ˌʌnɪkˈspleɪnd /

adjective

  1. not explained or understood

    unexplained phenomena

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • unexplainable adjective

Explanation

Something that's unexplained isn't known or made clear, like an unexplained creaking sound coming from the attic of your grandparents' creepy house. Anything without a clear reason for happening or existing is unexplained, whether it's the mysterious crack in the kitchen window or some lines of movie dialogue spoken in a language you don't understand (and without subtitles). When you explain something, you describe what it is, how it works, or why it exists — and then it's explained. Add the prefix un-, meaning "not," and you get unexplained.

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Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A second attempt begins at 11:17 p.m., but the crew aborts and declares an emergency when flight attendants report feeling sick due to an unexplained smell permeating the cabin.

From The Wall Street Journal • Mar. 24, 2026

Navy pilots seeing unexplained aerial phenomenon, then by a 2023 Congressional subcommittee hearing on the topic.

From Los Angeles Times • Mar. 13, 2026

This has been the case since the dawn of mobile devices and algorithmic personalization, but forced separations may have turned curt, unexplained goodbyes into a perceived relationship norm.

From Salon • Mar. 8, 2026

He was pronounced dead at the scene and his death is currently being treated as "unexplained", the force said.

From BBC • Feb. 23, 2026

Over the years they’d learned more than a few things about figuring out unexplained events.

From "Hopping Mad (The Hardy Boys: Secret Files, #4)" by Franklin W. Dixon