hyperactivity

American  

[hahy-per-ak-tiv-i-tee] / ˌhaɪ pər ækˈtɪv ɪ ti /

noun

1. the condition of being hyperactive.

2. hyperkinesia.

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hyperactivity Scientific  

/ hī′pər-ăk-tĭv′ĭ-tē /

1. An abnormally high level of activity or excitement shown by a person, especially a child, that interferes with the ability to concentrate or interact with others.

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Etymology

Origin of hyperactivity

First recorded in 1885–90; hyperactive + -ity

Example Sentences

Rivera, who lives in South Gate, has a 6-year-old daughter who is autistic and has attention deficit hyperactivity disorder and a 16-year-old son who is autistic and nonverbal.

From Los Angeles Times • Apr. 13, 2026

Additional research linked consumption to increased hyperactivity in children.

From Salon • Apr. 11, 2026

Darren said that by the age of six or seven, changes in Sophia's behaviour had become more noticeable, including hyperactivity and mood swings.

From BBC • Mar. 31, 2026

It is characterized by persistent patterns of inattention, hyperactivity, and impulsivity that can interfere with daily life, including school, work, and relationships.

From Science Daily • Mar. 17, 2026

And the more I began to appreciate what she did for my family, the less her accent and hyperactivity bothered me.

From "Where Things Come Back" by John Corey Whaley