hyperactivity

American  

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

noun

1. the condition of being hyperactive.

2. hyperkinesia.

---

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.

---

Etymology

Origin of hyperactivity

First recorded in 1885–90; hyperactive + -ity

Example Sentences

See Examples For:

hyperactivity

There might be coaches who could help with issues like attention deficit hyperactivity disorder or therapists she could talk to about her mental health.

From MarketWatch ● Jul. 29, 2026

Her latest album, "ADHDara," is inspired by her "hyperactivity".

From Barron's ● May 17, 2026

All three have autism, and one has severe attention-deficit hyperactivity disorder.

From Los Angeles Times ● Apr. 13, 2026

"In our situation, we assume that the shift in membrane composition is triggered by hyperactivity of the affected neurons due to Alzheimer's disease. That is, these neurons exhibit abnormal firing."

From Science Daily ● Apr. 11, 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