Footnoted is a word commonly used in academic writing to refer to additional information or commentary that has been added at the bottom of a page. However, there are many other words that can be used as synonyms for this term, such as annotated, referenced, cited, noted, added, remarked, mentioned, appended, or documented. These words all convey the same general meaning as footnoted, but they may be used in different contexts or have slightly different connotations. When choosing which synonym to use in your writing, consider the tone of your work and the intended audience, as well as any specific style guidelines or formatting requirements for citations and references.