Unknown
Unknown adjective - Not known.
Usage example: an unknown amount
Undiscovered is a synonym for unknown in obscure topic. In some cases you can use "Undiscovered" instead an adjective "Unknown", when it comes to topics like unexplored. popular alternative
Nearby Words: unknowable, unknowing
Undiscovered
Undiscovered adjective - Not yet discovered.
Usage example: undiscovered islands
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Synonyms for Undiscovered
Unknown is a synonym for undiscovered in unfound topic. You can use "Unknown" instead an adjective "Undiscovered". popular alternative
Mutual synonyms
Related pairs
Cite this Source
Undiscovered and Unknown. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/unknown/undiscovered
Unknown & Undiscovered. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/unknown/undiscovered>.
Undiscovered or Unknown. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/unknown/undiscovered.
Google Ngram Viewer shows how "unknown" and "undiscovered" have occurred on timeline