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Definitions

hyperactivity

[hahy-per-ak-tiv-i-tee] / ˌhaɪ pər ækˈtɪv ɪ ti /
NOUN
attention deficit disorder
Synonyms


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.

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Although she was never formally diagnosed with attention-deficit/hyperactivity disorder, a condition marked by focus issues, hyperactivity and impulsivity, per the Mayo Clinic, Spencer writes that he is “convinced” she suffered from it.

From Los Angeles Times ● Sep. 25, 2026

Cohen Tzedek said he didn’t fit in at his yeshiva, a Jewish religious school, and struggled with attention-deficit hyperactivity disorder.

From The Wall Street Journal ● Sep. 6, 2026

Mice with the greatest brain hyperactivity when they were young later developed the most severe memory problems.

From Science Daily ● Aug. 23, 2026

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

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




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