Circumferentially refers to something that is done or occurs around the circumference of a circle or sphere. There are several synonyms for circumferentially, including peripherally, around the edge, on the periphery, surrounding, bordering, encompassing, and encircling. These words convey the same meaning as circumferentially but provide different options for writers to use in their writings. For instance, a writer can use "peripherally" to indicate something that is done on the outer edge of a circular object. Similarly, "encircling" can be used to describe something that completely surrounds an object. Overall, these synonyms offer more flexibility for writers while maintaining the same idea as circumferentially.