Hyper-activity is a term used to describe someone who is overly active, restless, or fidgety. However, there are many synonyms that can be used to describe this behavior. One such synonym is "agitation," which refers to a state of restlessness or excitement. Another synonym is "excessiveness," which suggests that the person is taking their energy to extreme levels. "Restlessness" is another word that can be used to describe hyperactivity, as is "nervousness." "Impulsiveness" and "inattention" are also synonyms that suggest a lack of focus and control. Other words that could be used to describe the same behavior might include "energy," "thrill-seeking," and "excitement-seeking." Ultimately, the synonyms we choose depend on the context in which we're describing the behavior in question.