Nummular is a term that is often associated with coin-shaped objects, such as coins or circular lesions on the skin. However, there are a few synonyms that can be used to describe this shape or pattern. One such synonym is "discoid," which refers to something that is shaped like a disc or circular plate. Another option is "round," which simply describes a shape that is circular or spherical. Other potential synonyms for nummular might include "circular," "orbicular," or "annular," depending on the specific context in which the term is being used. These synonyms can help to provide more variety and nuance in language, allowing writers and speakers to express themselves more effectively.