UNIVALVES Antonyms There are 2 antonyms of the word univalves. (opposite meanings)Did you mean?Definition of UNIVALVESSynonyms of UNIVALVESAlso try opposite words for..univalveunivalvularBest Opposite Words For UNIVALVESTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1bivalvenoun, adjectiven, adj2bivalvesnounn Alternatives for BIVALVE Words (9)bivalveclammolluskmusseloysterscallopbivalvedlamellibranchpelecypodOpposite words for bivalve Alternatives for BIVALVES Words (8)clamsmollusksmusselsoystersscallopsbivalvedlamellibranchpelecypodOpposite words for bivalves