A deliberate action aimed at weakening someone (or something, a nation, etc) or preventing them from being successful, through subversion, obstruction, disruption, and/or destruction.

To deliberately destroy or damage something in order to prevent it from being successful.

simple past tense and past participle of sabotage

plural of sabotage

Third-person singular simple present indicative form of sabotage

plural of sabotager

One who sabotages.

susceptible to sabotage

present participle of sabotage

The sabotaging, whether consciously or subconsciously, of oneself, one's own interests, plans etc.