pacifyEnglishOxford American Thesauruspacify verb Gregory tried to think of a way of pacifying his wife: placate, appease, calm, calm down, conciliate, propitiate, assuage, mollify, soothe, tranquillize, content, still, silence, relax, compose; British quieten; North American quiet. ▷antonyms provoke, enrage, inflame.