Dictionary.com
Thesaurus.com
Synonyms

undiscovered

British  
/ ˌʌndɪˈskʌvəd /

adjective

  1. not discovered or encountered

"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

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."

Keep Reading on Vocabulary.com

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.

See Examples For:

That his offending remained undiscovered for more than three decades meant he was able to enjoy life in the community, the court heard.

From BBC Aug. 24, 2026

"But Kogia Helicobacter 3 belongs to a more divergent lineage, which emphasizes the possibility that there are far more undiscovered bacteria in the ocean than we realize."

From Science Daily Jul. 21, 2026

Blum added that the films’ success could make studios more willing to bet on undiscovered directors who “might not have been considered” before.

From Los Angeles Times Jun. 20, 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

Is it flying fish or dolphins or some undiscovered pulse?

From "Dreaming in Cuban" by Cristina García

Vocabulary.com logo
by dictionary.com

Join 12,000,000 vocabulary learners

Start learning new words today on VocabTrainer.
You'll remember them forever.

Start training