Synonyms for adieu Found 14 synonyms across 1 meaning for “adieu”. a farewell remark (noun) adiosarrivedercibyebye-byecheeriogood-bygoodbygood-byegoodbyesayonara Explore Related Words Rhymes with adieuSynonyms for adiosSynonyms for arrivederciSynonyms for byeSynonyms for bye-byeSynonyms for cheerio Synonym Finder | Rhyme Finder | Poetry Editor