overactive
Americanadjective
adjective
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inordinately active
-
(of the thyroid or adrenal gland, nervous system, etc) functioning at too high a capacity
Other Word Forms
Derived Forms
Etymology
Origin of overactive
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
The company launched a new product for overactive bladder called Altaviva.
From Barron's • Nov. 18, 2025
The scientists also tested the compound in mice with tumors carrying mutations in another cancer-linked gene, HER2, which is often overactive in breast cancer and also connects with PI3K.
From Science Daily • Oct. 19, 2025
“I have a prescription for an overactive bladder.”
From The Wall Street Journal • Oct. 17, 2025
"And why were you wasting precious time listening to an overaged delivery boy with an overactive imagination when you should have been studying."
From "The Westing Game" by Ellen Raskin
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
