The word "undefaced" is a term used to describe something that has not been altered or disfigured. Synonyms for this word include unblemished, unspoiled, immaculate, flawless, and pristine. These words are often used to describe natural landscapes, artworks, or buildings that have remained unchanged over time. Additionally, "undefaced" can be used to describe a person's reputation, where synonyms like untainted or unblemished can be used. Overall, all of these synonyms emphasize the idea of purity and perfection, without any damage or flaws.