ANTACID Antonyms There are 3 antonyms of the word antacid. (opposite meanings)Did you mean?Definition of ANTACIDBest Opposite Words For ANTACIDTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1acidicadjectiveadj2bitteradjectiveadj3sourverb, adjectivev, adj Alternatives for ACIDIC Words (12)acerbicaceticbittercitricpungentsharpsourtangyvinegaryacidacidulentacidulousOpposite words for acidic Alternatives for BITTER Words (21)acerbicacridacrimoniousrancorousresentfulsharpsourbitternessacerbacidbitingbitinglybitterlyblisteringcausticjadedpiercinglysulfuroussulphurousvirulentvitriolicAbbreviations (1)epaOpposite words for bitter Alternatives for SOUR Words (40)rancidacerbacerbicaceticacidicacidulousacridastringentbitingbittercausticcitricharshlemonypiquantpungentsharptangyvinegarysournessacetifyacidifyacidityacidulatedarkdourfalsefermentgloweringglummoodymoroseoffoff-keysaturninesullentartnessturnturnedworkOpposite words for sour