[ uhn-der-mahynd or, especially for 1, 2, uhn-der-mahynd ]
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  1. attacked, weakened, or defeated by underhand or seemingly harmless actions or by imperceptible stages:Both the struggling students and the most gifted ones are receiving limited support from an undermined educational system.

  2. weakened or made to collapse by removing underlying support, as by eroding or digging away the foundation:With the release of material from the undermined cliffs at these sites, we should have had far more sand to feed the beaches, not less.

  1. deliberately weakened by an excavation or tunnel dug underneath, as by an enemy in war:When the town was besieged, its defenders abandoned the undermined walls and retired into the citadel.

  1. the simple past tense and past participle of undermine.

Origin of undermined


Words Nearby undermined

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use undermined in a sentence