POTASSIC Antonyms There are 3 antonyms of the word potassic. (opposite meanings)Did you mean?Definition of POTASSICBest Opposite Words For POTASSICTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1calciumnounn2magnesiumnounn3sodiumnounn Alternatives for SODIUM Words (4)naalkalisaltnatriumPhrases (1)atomic number 11Opposite words for sodium