Verb: undermine ,ún-du(r)'mIn
- Act to reduce, damage or destroy the effectiveness, power or stability of something
"The Resistance undermined railway operations during the war";
- sabotage, countermine, counteract, subvert, weaken
- Hollow out as if making a cave or opening
"The river was undermining the banks";
- cave
Derived forms: undermined, undermines, undermining
Type of: core out, disobey, hollow, hollow out
Encyclopedia: Undermine