Synonyms

hyperactivity

American

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

noun

the condition of being hyperactive.
hyperkinesia.

hyperactivity Scientific

/ hī′pər-ăk-tĭv′ĭ-tē /

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

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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

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

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023