Meaning of “hyperactive” - Learner’s Dictionary

hyperactive

adjective uk us /ˌhaɪpərˈæktɪv/

Someone who is hyperactive has more energy than is normal, gets excited easily, and cannot stay still or think about their work:

hyperactive children
hyperactivity uk us /ˌhaɪpərækˈtɪvəti/ noun [ U ]

(Definition of “hyperactive” from the Cambridge Learner’s Dictionary © Cambridge University Press)