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Definitions

overactive

[oh-ver-ak-tiv] / ˌoʊ vərˈæk tɪv /


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.

Koy, the son of a white father and Filipina mother, saw comedy as a way to channel an overactive personality and need to make people laugh into a career.

From Los Angeles Times • Mar. 5, 2026

As the animals reached adulthood, this disruption led to an overactive immune response and chronic inflammation, significantly increasing the risk of inflammatory gut diseases and obesity.

From Science Daily • Dec. 26, 2025

Researchers are probing the pill’s efficacy in patients with Type 2 inflammatory diseases, which are triggered by an overactive immune response.

From Barron's • Dec. 8, 2025

“I have a prescription for an overactive bladder.”

From The Wall Street Journal • Oct. 17, 2025

My mother used to tell me that I had an overactive imagination; Tom said that, too.

From "The Girl on the Train" by Paula Hawkins