unexplained
Britishadjective
Other Word Forms
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.
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.
It was a rare, unexplained, glitch in a system that blares out warnings of incoming attacks multiple times a day through loudspeaker announcements on the street and metro, and the collective ping of phone notifications.
From Barron's ● Jul. 9, 2026
Early symptoms include fever and fatigue; later stages may involve diarrhea, vomiting and unexplained bleeding.
From The Wall Street Journal ● Jun. 3, 2026
"For a parent that's gone through an unexplained death, it's paramount that they get that answer quickly," he adds.
From BBC ● May 29, 2026
And why MedPac — an independent body overseen by leading healthcare professionals from across all parts of the industry, from doctors to nursing organizations to health insurers themselves — would fabricate these numbers is unexplained.
From MarketWatch ● May 28, 2026
Brian was a member of Leon’s algebra class and he didn’t want to take any chances with extra homework or sudden unexplained F’s on exams.
From "The Chocolate War" by Robert Cormier
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
