BUTYL Antonyms There are 7 antonyms of the word butyl. (opposite meanings)Did you mean?Definition of BUTYLBest Opposite Words For BUTYLTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb RankWordSave?Synonyms..UsageType1ethyladjectiveadj2methylnoun, adjectiven, adj3propylnounn4hexylnoun, adjectiven, adj5nonylnounn6octyladverb, noun, adjectiveadv, n, adj7pentylnoun, adjectiven, adj Alternatives for ETHYL Words (9)alcoholethanolmethanolpropylhexylnonyloctylpentyletPhrases (2)ethyl groupethyl radicalAbbreviations (1)eOpposite words for ethyl Alternatives for PENTYL Words (1)amylOpposite words for pentyl