1. (adj)valediction, valedictory address, valedictory oration, valedictory a farewell oration (especially one delivered during graduation exercises by an outstanding member of a graduating class) Synonyms: valedictory address, valedictory oration, valediction, valedictory Antonyms: inaugural
2. (adj)valedictory of or relating to an occasion or expression of farewell Antonyms: inaugural
3. (adj)valedictory of a speech expressing leave-taking Antonyms: inaugural