(n.) The act of overturning; overthrow; as, the subversion of despotic power\; the subversion of the constitution.

alienation answer bloodless revolution bouleversement brainwashing breakdown breakup capsizal capsize cataclysm catastrophe clean slate clean sweep complete answer computer revolution confounding confutation contradiction controversion convulsion corruption counterindoctrination counterrevolution culbute debacle demolishing demolition denial destroying destruction discrediting displacement downfall effective rejoinder fall indoctrination overset overthrow overthrowal overturn palace revolution prostration radical change rebuttal refutal refutation reindoctrination revolt revolution revolutionary war revulsion ruin sabotage somersault somerset spasm spill squelch striking alteration sweeping change tabula rasa technological revolution total change transilience turnover undermining upheaval upset upsetting upturn violent change wreckage wrecking