Meaning of “hyperactive” - Learner’s Dictionary

hyperactive

adjective us uk /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 noun [ U ] us uk /ˌhaɪpərækˈtɪvəti/

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