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.
The gravitational pull of an undiscovered planet, several times larger than Earth, was seen as a possible reason for the discrepancy.
From Science Daily • Jun. 9, 2026
It quickly became a so-called "creepypasta" -- a short horror story reposted and modified around the web, to which other users added details such as monsters and undiscovered dimensions.
From Barron's • May 28, 2026
This raises the question: Are there other undiscovered gems sitting in the archive waiting to be released?
From BBC • May 27, 2026
That discrepancy excited physicists because it hinted at the possibility of undiscovered particles or even a new "fifth force" beyond the four known fundamental forces.
From Science Daily • May 19, 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
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.
