Thesaurus.com
Dictionary.com
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.

See Examples For:

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

A Kenvue spokesman said the ruling Monday “does not change the fact that credible, independent science shows no proven link between taking acetaminophen and autism or attention-deficit hyperactivity disorder.”

From The Wall Street Journal ● Jul. 13, 2026

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

From Barron's ● May 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




Vocabulary.com logo
by dictionary.com

Just like flashcards, but way more fun

Don't take our word for it. Leave the boring studying behind and join VocabTrainer today. You'll learn even faster and never look back.

Take me to Vocabulary.com