EXONS Antonyms3 antonyms for exons. (opposite meanings)Definition of EXONS exon Best Opposite Words For EXONSTop 20Top 10 Top 20 (Default)Top 50 Top 100 All All (Default)WordsPhrases All All (Default)Verb Noun Adjective Adverb WordSaveSyns..UsageTypeintronsnounnnoun • sequence of a eukaryotic gene's DNA that is not translated into a proteinnoncodingadjectiveadjadjective • (of a portion of DNA) That does not code for protein.intronnounnnoun • sequence of a eukaryotic gene's DNA that is not translated into a protein