Annularly is an adverb that refers to something done or happening in an annular pattern or shape. It can also describe something that is cyclic or recurring in nature. Synonyms for annularly include circularly, roundly, cyclically, periodically, and repeatedly. These words can be used interchangeably depending on the context in which they are used. For example, when describing the movement of objects in space, circularly or orbitally could be used instead of annularly. In the context of describing a pattern or design, roundly may be more appropriate. Regardless of the synonym used, they all convey the sense of a steady repetition or rotation.