Hyperactiveness is a term used to describe an excessive amount of energy or restlessness in a person. Some synonyms for hyperactiveness include overactivity, restlessness, agitation, excitability, fidgetiness, and impatience. These terms are commonly used to describe individuals who have difficulty sitting still, focusing, or staying calm. Other synonyms for hyperactiveness include hyperkinesis, hyperactivity, and attention deficit hyperactivity disorder (ADHD). It's important to note that while hyperactiveness may be a natural part of some people's personalities, it can also be a symptom of an underlying medical condition. If you or someone you know is struggling with hyperactiveness, it's important to seek professional help to address any underlying issues.