hyperactive

adjective

hy·​per·​ac·​tive ˌhī-pər-ˈak-tiv How to pronounce hyperactive (audio)
1
: affected with or exhibiting hyperactivity
broadly : more active than is usual or desirable
2
: intricately or elaborately designed or detailed
hyperactive noun

Examples of hyperactive in a Sentence

the skyrocketing price of oil resulted in a wildly fluctuating, hyperactive stock market hyperactive children who are in dire need of a guardian with a firm hand
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Throughout the night, Keoghan is a hyperactive presence, at one point asking an event worker to take a photo of him and Paul Mescal on his phone while Saoirse Ronan waits close by. Jason P. Frank, Vulture, 18 Nov. 2024 Every line and every stop set my hyperactive sixth-grade mind afire, but none more than the boxed lunch entry. Forrest Brown, CNN, 23 July 2024 Soon enough, the school's overrun with hyperactive kiddos bouncing off the walls, and the teachers have to devise a plan to burn off this sugar buzz while tracking down the sticky-fingered culprit running loose in their halls. Nicole Briese, People.com, 22 Oct. 2024 This is particularly true of females with the disorder, whose behavior as children tends to be more inattentive than hyperactive like the stereotypical boy with ADHD. Lydia Denworth, Scientific American, 15 Oct. 2024 See all Example Sentences for hyperactive 

Word History

First Known Use

1867, in the meaning defined at sense 1

Time Traveler
The first known use of hyperactive was in 1867

Dictionary Entries Near hyperactive

Cite this Entry

“Hyperactive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperactive. Accessed 2 Dec. 2024.

Kids Definition

hyperactive

adjective
hy·​per·​ac·​tive ˌhī-pər-ˈak-tiv How to pronounce hyperactive (audio)
: very active especially to an abnormal amount
hyperactivity
-ak-ˈtiv-ət-ē
noun

Medical Definition

hyperactive

1 of 2 adjective
hy·​per·​ac·​tive ˌhī-pə-ˈrak-tiv How to pronounce hyperactive (audio)
: affected with or exhibiting hyperactivity
Scientists suspect in certain genetically susceptible people, the immune cells remain hyperactive long after the infectious agent has been cleared from the body.Kathy Fackelmann, Science News
A growing number of parents suspect that the powerful stimulant Ritalin—long prescribed for its paradoxically tranquilizing effect on hyperactive children—has become a convenience for teachers seeking quiet classrooms …David Gates. Newsweek
broadly : more active than is usual or desirable

hyperactive

2 of 2 noun
: an individual who is hyperactive

More from Merriam-Webster on hyperactive

Last Updated: - Updated example sentences
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