as in heated
being in a state of increased activity or agitation
the boy manages to panic himself by his own overactive imagination
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Recent Examples of overactive
The thyroid then releases thyroid hormone into the blood, causing the symptoms of an overactive thyroid gland or decreased thyroid hormone production as a result.
—
Alyce Collins, MSNBC Newsweek, 25 Aug. 2025
This is important because hair loss can often be a sign of thyroid problems; both an underactive and an overactive thyroid can disrupt hair growth, resulting in hair thinning or shedding.
—Varsha Patel, Refinery29, 21 Aug. 2025
What causes headaches? For primary headaches, there’s often no single root cause, just processes in the brain and surrounding tissues that become overactive.
—Daryl Austin, USA Today, 21 Aug. 2025
Such individuals may be socially awkward, struggle with emotional regulation, and have an overactive fantasy life, Girgis says.
—Robert Hart, Time, 5 Aug. 2025
See All Example Sentences for overactive
Alyce Collins, MSNBC Newsweek, 25 Aug. 2025
This is important because hair loss can often be a sign of thyroid problems; both an underactive and an overactive thyroid can disrupt hair growth, resulting in hair thinning or shedding.
—Varsha Patel, Refinery29, 21 Aug. 2025
What causes headaches? For primary headaches, there’s often no single root cause, just processes in the brain and surrounding tissues that become overactive.
—Daryl Austin, USA Today, 21 Aug. 2025
Such individuals may be socially awkward, struggle with emotional regulation, and have an overactive fantasy life, Girgis says.
—Robert Hart, Time, 5 Aug. 2025
See All Example Sentences for overactive
Recent Examples of Synonyms for overactive
Adjective
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Zach Bryan and Gavin Adcock were involved in a heated confrontation that nearly turned physical at the Born & Raised Festival in Pryor, Oklahoma.—
Mitchell Peters,
Billboard,
14 Sep. 2025
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Researchers in Taiwan have developed a stretchable, self-healing gel that changes color when pulled or heated.—
Christopher McFadden,
Interesting Engineering,
14 Sep. 2025
Adjective
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Jennifer Affleck, one of the stars from The Secret Lives of Mormon Wives, entered rehearsals excited to be paired with Jan Ravnik and to tap into her Latin roots.—
Joelle Goldstein,
PEOPLE,
17 Sep. 2025
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When people are excited, there’s bound to be energy and urgency.—
Dahvi Shira,
Forbes.com,
17 Sep. 2025
Adjective
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Remember how agitated Laura got when Daniel scraped his knee mountain biking?—
Rafaela Bassili,
Vulture,
10 Sep. 2025
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As officers tried to determine if he was connected to the disturbance, Cusick allegedly became agitated and produced a firearm, Depue said earlier.—
Robert A. Cronkleton,
Kansas City Star,
3 Sep. 2025
Adjective
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But then Lacey was back with the kids, banging around in the kitchen, and the first of the evening’s friends and acquaintances began to show up and the blessedness passed, as had the roadrunner, hyperactive and vigilant and always on the make, gone off to seek somebody else’s snakes.—
T. Coraghessan Boyle,
New Yorker,
14 Sep. 2025
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Inattentive symptoms typically persist with age, while hyperactive ADHD symptoms often decline, according to the National Institutes of Health.—
Clare Mulroy,
USA Today,
11 Sep. 2025
Cite this Entry
“Overactive.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/overactive. Accessed 18 Sep. 2025.
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