hy·​per·​ac·​tiv·​i·​ty | \ ˌhī-pər-ˌak-ˈti-və-tē How to pronounce hyperactivity (audio) \

Definition of hyperactivity

1 : the state or condition of being overly active Canada geese are disarmingly expressive. … They disdain the frantic hyperactivity of smaller birds.— Benjamin B. Bachman
2 : increased levels of function or activity especially when considered abnormally excessive She had developed delusions of invincibility, along with bouts of hyperactivity and severe insomnia.— Per Ola and Emily D'Aulaire especially : higher than usual levels of movement and activity (such as excessive talking or fidgeting) typically associated with attention deficit disorder An estimated 1 in 50 school-age children in the United States, receive stimulant medication to help quell inattentiveness and hyperactivity. — Christine Mlot

Examples of hyperactivity in a Sentence

Recent Examples on the Web Other attributes, like hyperactivity and anxiety, were not associated with future earnings. Jennifer Ouellette, Ars Technica, "Forget the marshmallow test; this could be the real secret to kids’ future success," 19 Sep. 2019 Attention-deficit/hyperactivity disorder (ADHD) is among the most common neurodevelopmental disorders diagnosed in children. Maggie O'neill, Health.com, "Is ADHD Genetic? Here’s What Experts Say," 16 Dec. 2019 Neurodivergent people include those with autism, Asperger’s syndrome, attention deficit and hyperactivity disorder (ADHD), dyslexia, and other people with cognitive differences. Gwen Moran, Fortune, "As Workers Become Harder to Find, Microsoft and Goldman Sachs Hope Neurodiverse Talent Can Be the Missing Piece," 7 Dec. 2019 Cats under the influence of catnip may roll around, dart across the room, flip over, and exhibit general hyperactivity. Texas A&m University, Houston Chronicle, "PET TALK: Know the boredom-busting benefits of catnip," 7 Dec. 2019 Sometimes during a manic episode, people can experience risk-taking behaviors, hyperactivity or impulsive decisions. Annie Lane | Creators.com, oregonlive, "Dear Annie: Woman worries that cousin might want to move in with her," 4 Dec. 2019 Sometimes during a manic episode, people can experience risk-taking behaviors, hyperactivity or impulsive decisions. Dear Annie, cleveland, "Dear Annie: I don’t want my cousin to move in with me. Is that wrong?," 3 Dec. 2019 Examples of behavioral health conditions that affect children and adolescents include anxiety, attention deficit/hyperactivity disorder, obsessive-compulsive disorder and suicidal ideation. Guy Boulton, Milwaukee Journal Sentinel, "Children's Wisconsin announces plan to improve access to behavioral health care for children, adolescents," 19 Nov. 2019 Obsessive compulsive disorder, phobias, elimination disorders, psychosis, panic disorder, attention-deficit hyperactivity disorder, agoraphobia, and catatonia deserve our clinical attention, care, and compassion — not our laughs. BostonGlobe.com, "An Examination of College Crunch Time," 16 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'hyperactivity.' 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 hyperactivity

1888, in the meaning defined at sense 1

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Time Traveler for hyperactivity

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The first known use of hyperactivity was in 1888

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Statistics for hyperactivity

Last Updated

25 Jan 2020

Cite this Entry

“Hyperactivity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperactivity. Accessed 18 Feb. 2020.

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More Definitions for hyperactivity


hy·​per·​ac·​tiv·​i·​ty | \ ˌhī-pə-ˌrak-ˈtiv-ət-ē How to pronounce hyperactivity (audio) \
plural hyperactivities

Medical Definition of hyperactivity

: a state or condition of being excessively or pathologically active especially : attention deficit disorder

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Rhyming Dictionary: Words that rhyme with hyperactivity

Spanish Central: Translation of hyperactivity

Nglish: Translation of hyperactivity for Spanish Speakers

Britannica.com: Encyclopedia article about hyperactivity

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