sabotage Definition

sabotage
noun

1. Deliberate or underhand damage or destruction, especially carried out for military or political reasons.

Thesaurus: damage, vandalism, destruction, impairment.
2. Action designed to disrupt any plan or scheme and prevent its achievement.

verb

sabotaged, sabotaging
1. To deliberately destroy, damage or disrupt something.

Thesaurus: undermine, subvert, disrupt, attack, impair, throw a monkey wrench into (US), cripple, disable, incapacitate, wreck, destroy, demolish.

Etymology: 19c: from French saboter to ruin through carelessness.