hy·​per·​ac·​tive | \ ˌhī-pər-ˈak-tiv How to pronounce hyperactive (audio) \

Definition of hyperactive

1 : affected with or exhibiting hyperactivity broadly : more active than is usual or desirable
2 : intricately or elaborately designed or detailed

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Other Words from hyperactive

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

Her hyperactive black-and-white writing flashes on mobile LED screens, with text popping in the awful rapid fire of semiautomatic weapons. Allie Holloway, Harper's BAZAAR, "Sarah Chadwick, Laura Dern, & Diane Kruger Fight for Gun Violence Prevention," 20 Feb. 2019 The remote and its voice command abilities are fine, even if its motion controls can be hyperactive at times. Jeff Dunn, Ars Technica, "The Ars Holiday Gift Guide 2018—good tech for the power user in your life," 4 Dec. 2018 Yet even for a puppy, Phoebe seemed hyperactive — running, sliding, and skidding around Dr. Berman's examining room floor. Alison Rose, Town & Country, "Park Avenue's Pet Whisperer," 3 Sep. 2014 Lethem is in an absurdist, hyperactive mode here, piling contemporary social anxieties on top of a ragged vision of frontier living, and if the results are mixed, the novel is nevertheless packed with surprises and vivid, apocalyptic tableaux. Vogue, "Need a New Read? Here Are the 4 Books We’re Loving Right Now," 15 Nov. 2018 Making It has an almost manic, hyperactive pleasantness. Cady Drell, Marie Claire, "Making It Is for Taking Care of Yourself Responsibly," 14 Aug. 2018 Students who reported often experiencing 6 or more inattentive or hyperactive-impulsive symptoms were found to be ADHD symptom-positive, according to JAMA. Brooke Crothers, Fox News, "Alarming study shows link between digital media use and ADHD," 19 July 2018 But after the hyperactive, popular Roosevelt, Taft seemed staid, uninspiring, flaccid. Gerard Helferich, WSJ, "‘William Howard Taft’ Review: Taking the Bully Out of the Pulpit," 19 Mar. 2018 On Twitter The lawsuit comes as Aldrin’s verified Twitter account with 1.4 million followers, @TheRealBuzz, became hyperactive on June 18 after more than a month of dormancy. Eric Berger, Ars Technica, "Buzz Aldrin returns to Twitter, sues his son and former manager," 23 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hyperactive.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of hyperactive

1867, in the meaning defined at sense 1

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Statistics for hyperactive

Last Updated

7 Mar 2019

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Time Traveler for hyperactive

The first known use of hyperactive was in 1867

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More Definitions for hyperactive



English Language Learners Definition of hyperactive

: extremely active or too active


hy·​per·​ac·​tive | \ ˌhī-pər-ˈak-tiv How to pronounce hyperactive (audio) \

Kids Definition of hyperactive

: extremely or overly active


hy·​per·​ac·​tive | \ ˌhī-pə-ˈrak-tiv How to pronounce hyperactive (audio) \

Medical Definition of hyperactive

 (Entry 1 of 2)

: 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, 23 Oct. 1993 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, 23 Nov. 1987 broadly : more active than is usual or desirable



Medical Definition of hyperactive (Entry 2 of 2)

: an individual who is hyperactive

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Comments on hyperactive

What made you want to look up hyperactive? Please tell us where you read or heard it (including the quote, if possible).


to boil down or concentrate

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