undermine

Verb

• destroy property or hinder normal operations
• hollow out as if making a cave or opening
• To dig underneath (something), to make a passage for destructive or military purposes; to sap.
• To weaken or work against; to hinder, sabotage.
• To erode the base or foundation of something, e.g. by the action of water.
• To regard an object as the sum of the parts that compose it, in object-oriented ontology.

Examples

• The war efforts were undermined by the constant bickering between the allies.

Synonyms

cave, counteract, countermine, sabotage, subvert, weaken, corrode

Antonyms

undergird