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Syllabification: hy·per·ac·tive
Pronunciation: /ˌhīpərˈaktiv

Definition of hyperactive in English:


1Abnormally or extremely active: a hyperactive pituitary gland
More example sentences
  • After about five days patients enter a second phase in which they are restless but not hyperactive or hostile and are now cooperative.
  • The hyperactive groups, however, did not differ from each other in the number of time estimation errors.
  • So where does this tale of abnormal, sane, hyperactive ambition begin?
1.1(Of a child) showing constantly active and sometimes disruptive behavior.
Example sentences
  • I have three hyperactive children and two of them have behavioural problems, so I really need a job I can do at home.
  • Blue softens the energy of hyperactive children's rooms.
  • Willoughby, an attention-seeking hyperactive child, was, by his mid to late teens, violently deranged.



Pronunciation: /-ˌakˈtivitē/
Example sentences
  • The United States' destructive hyperactivity in Iraq cannot be disentangled from its neglect of global warming.
  • And they warned these colourings have been linked to allergies, asthma, migraines, hyperactivity in children and even cancer.
  • Each teacher was asked to respond to the 13 items relating to hyperactivity as exhibited in the classroom context.

Definition of hyperactive in:

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Word of the day prepotent
Pronunciation: prɪˈpəʊt(ə)nt
greater than others in power or influence