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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.

“As most fiction, it is a composite, an amalgam of personal experience, research and my fertile, overactive imagination,” Raicek said.

From The Wall Street Journal • Apr. 16, 2026

The disease develops when repeated or long-term liver damage -- caused by viral hepatitis, excessive alcohol use, metabolic disorders, toxins, or autoimmune disease -- triggers an overactive healing response.

From Science Daily • Jan. 6, 2026

"I'm a fierce perfectionist and there is an overactive, hugely self-critical voice in my head - my whole life is an exercise in trying to shake that," he says.

From BBC • Dec. 31, 2025

Axonics makes an implantable device that treats bowel and bladder conditions, such as overactive bladder.

From Barron's • Oct. 30, 2025

Noah has an overactive imagination, written on every school report I’ve ever gotten.

From "I'll Give You the Sun" by Jandy Nelson