undermining
verb
Definitions
To dig underneath (something), to make a passage for destructive or military purposes; to sap.
To weaken or work against; to hinder, sabotage.
Example: The war efforts were undermined by the constant bickering between the allies.
To erode the base or foundation of something, e.g. by the action of water.
noun
Definitions
The act or process by which something is undermined.