Hyperactive/ˌhaɪpərˈæktɪv/ Definition 1 of 3Pro Tip 1/3Emotional Charge Refers to someone's energy levels in a possibly disruptive way, often linked with excitability. The hyperactive puppy upset the quiet picnic. Pro Tip 2/3Negative Implication Can imply behavior that's difficult to manage; not always a positive description. The teacher found the hyperactive behavior in class challenging. Pro Tip 3/3Paired Words Often used with words related to motion or activity to emphasize excessiveness. After eating candy, she became hyperactive, zooming around nonstop.