Rotationally is a commonly used word to describe things that rotate or have rotational movement. However, if you are looking for some alternative terms to use to avoid redundancy, there are several synonyms available. For instance, you could use the word "circumvolving" to suggest rotational movement around a central point. Another synonym might be "cyclically," which refers to motion that repeats in regular, predictable cycles. "Revolving" is another word that means the same thing as rotationally, but it suggests a circular motion around a fixed axis. Additionally, you could use the term "gyrating," which describes a spinning or writhing movement. By using these synonyms, you can add variety and depth to your writing, while avoiding repetitive phrasing.