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Synonyms

unsolved

British  
/ ʌnˈsɒlvd /

adjective

  1. not having been solved or explained

    several unsolved murders

"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

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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.

Iranian leaders responded to the latest U.S. proposal, delivered through Pakistani mediators, by offering a gradual reopening of the strait while leaving critical nuclear issues unsolved.

From The Wall Street Journal • May 18, 2026

The Santa Ana Police Department has offered its own reward in that amount for information leading to arrests and convictions in the unsolved crime.

From Los Angeles Times • Apr. 25, 2026

The partnership will seek to deploy autonomous vehicles in unsolved areas, such as the intersection of roadways, bike lanes and road-adjacent spaces.

From The Wall Street Journal • Mar. 31, 2026

The worst seems to be over with no newly confirmed cases for a week, but there is still an unsolved mystery - why did this outbreak occur?

From BBC • Mar. 27, 2026

It is nice to think that there are so many unsolved puzzles ahead for biology, although I wonder whether we will ever find enough graduate students.

From "The Lives of a Cell" by Lewis Thomas

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