The term extra-mural refers to activities that take place outside the school or college curriculum. Antonyms for extra-mural include in-house, on-campus, or extracurricular. In-house activities are those that occur within the school or organizational premises, while on-campus activities are restricted to the campus boundaries. Extracurricular activities refer to the activities that supplement the academic curriculum taught in the institution. These activities may include sports, cultural events, debate competitions, and social service programs. Unlike extra-mural activities, extracurricular activities are designed to complement and expand the learning experience of students in a more structured and organized manner. Therefore, when referring to activities at schools, colleges, or universities, one may want to consider using antonyms like in-house, on-campus, or extracurricular instead of extra-mural.