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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Example Sentences
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Recent Examples of overactive
The Immune System in Overdrive At the center of HS is an overactive immune response—one that begins with a seemingly small event inside the hair follicle.
—
Lauryn Higgins, Flow Space, 6 May 2026
Studies show the drug works by affecting brain chemicals such as glutamate and dopamine to help calm the overactive signals in the brain linked to agitation.
—Dr. Jennifer Miao, ABC News, 1 May 2026
Red or Dark Skin With an overactive thyroid, your circulation increases.
—Brandi Jones, Health, 28 Apr. 2026
Who Gets the Most Out of L-Theanine The evidence is clearest for people whose main sleep barrier is anxiety or an overactive mind at bedtime.
—Allison Palmer, Charlotte Observer, 23 Apr. 2026
See All Example Sentences for overactive
Lauryn Higgins, Flow Space, 6 May 2026
Studies show the drug works by affecting brain chemicals such as glutamate and dopamine to help calm the overactive signals in the brain linked to agitation.
—Dr. Jennifer Miao, ABC News, 1 May 2026
Red or Dark Skin With an overactive thyroid, your circulation increases.
—Brandi Jones, Health, 28 Apr. 2026
Who Gets the Most Out of L-Theanine The evidence is clearest for people whose main sleep barrier is anxiety or an overactive mind at bedtime.
—Allison Palmer, Charlotte Observer, 23 Apr. 2026
See All Example Sentences for overactive
Recent Examples of Synonyms for overactive
Adjective
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There's a heated outdoor pool and hot tub at the base of the mountain.—
Condé Nast,
Condé Nast Traveler,
12 June 2026
-
Drafts, poor insulation and air leaks can undermine even the most efficient furnace, allowing heated air to escape and forcing the system to work harder.—
Alora Bopray,
USA Today,
12 June 2026
Adjective
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Players such as Spurs guard De'Aaron Fox and Knicks forward OG Anunoby don't sound nearly as excited.—
Alejandro Avila,
FOXNews.com,
9 June 2026
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Studiously moderated, but excited, voices amplified news of the actual invasion of Europe read hastily in Orlando Morning Sentinel.—
Orlando Sentinel Staff,
The Orlando Sentinel,
8 June 2026
Adjective
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There should be trainings at your school on how to deal with agitated students and hostile situations.—
Harriette Cole,
Mercury News,
8 June 2026
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Johnson became further agitated when Scott asked her about her seemingly troubled relationship with her daughters.—
KC Baker,
PEOPLE,
3 June 2026
Adjective
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And while Every Single Muscle may not be a concept album, its focus on the human body is intense and consistent to support a hyperactive number of songs and styles packed together.—
Alex Robert Ross,
Pitchfork,
8 June 2026
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The stars and creators of Scary Movie tell EW about their hyperactive new comedy, which even stretches beyond the bounds of horror to films like Michael and Wicked.—
Ryan Coleman,
Entertainment Weekly,
5 June 2026
Cite this Entry
“Overactive.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/overactive. Accessed 13 Jun. 2026.
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