Antefix \An"te*fix`\, n.; pl. E. {Antefixes}; L. {Antefixa}. [L. ante + fixus fixed.] (Arch.) (a) An ornament fixed upon a frieze. (b) An ornament at the eaves, concealing the ends of the joint tiles of the roof. (c) An ornament of the cymatium of a classic cornice, sometimes pierced for the escape of water.