verb ·Rare ·Advanced level

Definitions

Verb

1. 1
   To forget or revoke the discovery of (something discovered earlier). transitive

   "It's been happening since man discovered war, and it'll keep on till he undiscovers it, if he ever […]"

Example

More examples

"It's been happening since man discovered war, and it'll keep on till he undiscovers it, if he ever […]"

Etymology

From un- + discover.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.