undiscovered
Britishadjective
Explanation
Undiscovered things haven't been found yet. You might dream of becoming an explorer and mapping undicovered lands — or you might hope to be a scientist who finds previously undiscovered cures for disease. Use this adjective for things that have remained unknown or not discovered for a long period of time. Some of these will be undiscovered only to you, like the undiscovered secret garden in your city or a pile of undiscovered postcards your grandparents sent each other. Undiscovered comes from the prefix un-, or "not," and discover, "reveal, uncover, or disclose."
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.
Some physicists have proposed that new physics or an undiscovered symmetry could explain this difference.
From Science Daily ● Sep. 23, 2026
The Geological Survey of Denmark and Greenland in 2022 estimated the area contained 2.3 billion barrels of undiscovered oil, adding that any estimate is uncertain.
From The Wall Street Journal ● Sep. 7, 2026
Scientists do not yet know whether dark matter is made up of ancient black holes lurking throughout space, undiscovered heavy and slow particles, or unknown lighter and faster particles.
From Los Angeles Times ● Aug. 30, 2026
It found one in a legacy platform which had remained undiscovered for 27 years.
From BBC ● Aug. 27, 2026
Certainly I never dreamed I could have undiscovered red highlights but Andrea said I could; I just needed to encourage them to come out.
From "Homesick" by Jean Fritz
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Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
