I. noun
willful effort by indirect means to hinder, prevent, undo, or discredit (as a plan or activity)
sabotage of the project by disgruntled officials
Synonyms: subversion, undermining, wreckage, wrecking
Related Word: subversiveness, subversivism; damage, impairment, injury
II. verb
to practice sabotage on
sabotaged his opponent's campaign with rumors and smears
Synonyms: subvert, undermine, wreck
Related Word: frustrate, hamper, hinder; block, obstruct; damage; break up, destroy
Idioms: throw a monkey wrench into
Contrasted words: assist, back, support