COUMADIN Antonyms There are 3 antonyms of the word coumadin. (opposite meanings)Did you mean?Definition of COUMADINSynonyms of COUMADINBest Opposite Words For COUMADINTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1aspirinnounn2heparinnounn3warfarinnounn Alternatives for ASPIRIN Words (2)bayerempirinPhrases (2)acetylsalicylic acidst. josephOpposite words for aspirin Alternatives for HEPARIN Words (2)lipo-hepinliquaeminOpposite words for heparin Alternatives for WARFARIN Words (1)anticoagulantOpposite words for warfarin