Synonyms for Quenched (same or very similar meaning)
WordNet sense 1 (allayed):
satisfied, slakedWordNet sense 2 (made less severe or intense):
mitigatedWordNet sense 3 (subdued or overcome):
quelled, squelchedWordNet sense 4 (kept from public knowledge by various means):
suppressedFrom the ODE community, based on WordNetadd/edit