PROPENE Antonyms There are 2 antonyms of the word propene. (opposite meanings)Did you mean?Definition of PROPENESynonyms of PROPENEBest Opposite Words For PROPENETop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1butenenounn2ethenenounn Alternatives for BUTENE Words (1)butyleneOpposite words for butene Alternatives for ETHENE Words (3)ethyleneetheneolefineOpposite words for ethene