BUTENE Antonyms There are 4 antonyms of the word butene. (opposite meanings)Did you mean?Definition of BUTENEBest Opposite Words For BUTENETop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1ethenenounn2methanenoun, adjectiven, adj3propanenounn4hexene Alternatives for ETHENE Words (3)ethyleneetheneolefineOpposite words for ethene Alternatives for PROPANE Words (1)propellantOpposite words for propane