"Circumnutating" is a unique word that is generally not widely known. However, there are a few synonyms that can be used in place of this term. One such synonym is "gyrating," which refers to moving in a circular or spiral motion. Another synonym for circumnutating is "spinning," which describes movement around a central point or axis. "Twisting" can also be used to describe a similar motion, particularly when referring to plants or vines that wind around objects. "Coiling" is another synonym that can be used to describe the action of something wrapping itself around an object or surface. Overall, there are several synonyms that can be used in place of "circumnutating" depending on the context.