: not explained, corrected, or dealt with : not solved
an unsolved problem
unsolved math equations

Examples of unsolved in a Sentence

Recent Examples on the Web
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But the question remained unsolved for polygons with irrational angles. Sam MacDonald, Scientific American, 14 Aug. 2026 The first four episodes develop a strong non-fiction narrative about an unsolved crime. Anne Thompson, IndieWire, 13 Aug. 2026 Keeping it out of the rover’s moving parts is still an unsolved problem. Wanjiku Chebet Kanjumba, The Conversation, 13 Aug. 2026 Guthrie and Feldman have been supporting their children as the disappearance of their grandmother, Savannah’s mother, Nancy Guthrie, remains unsolved. Theresa Braine, New York Daily News, 13 Aug. 2026 See All Example Sentences for unsolved

Word History

First Known Use

1665, in the meaning defined above

Time Traveler
The first known use of unsolved was in 1665

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Cite this Entry

“Unsolved.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unsolved. Accessed 19 Aug. 2026.

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