SWEETEN Antonyms There are 3 antonyms of the word sweeten. (opposite meanings)Did you mean?Definition of SWEETENSynonyms of SWEETENAlso try opposite words for..sweetsweetlysweetenedsweetnesssweeteningBest Opposite Words For SWEETENTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1sourverb, adjectivev, adj2acidicadjectiveadj3bitteradjectiveadj Alternatives for SOUR Words (40)rancidacerbacerbicaceticacidicacidulousacridastringentbitingbittercausticcitricharshlemonypiquantpungentsharptangyvinegarysournessacetifyacidifyacidityacidulatedarkdourfalsefermentgloweringglummoodymoroseoffoff-keysaturninesullentartnessturnturnedworkOpposite words for sour Alternatives for ACIDIC Words (12)acerbicaceticbittercitricpungentsharpsourtangyvinegaryacidacidulentacidulousOpposite words for acidic Alternatives for BITTER Words (21)acerbicacridacrimoniousrancorousresentfulsharpsourbitternessacerbacidbitingbitinglybitterlyblisteringcausticjadedpiercinglysulfuroussulphurousvirulentvitriolicAbbreviations (1)epaOpposite words for bitter