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
Sepsis is caused by an overactive immune response to infection.
—
Michael L. Millenson, Forbes.com, 22 May 2025
Hypothyroidism is an underactive thyroid gland, and hyperthyroidism is an overactive thyroid gland.
—Colleen Doherty, Verywell Health, 12 May 2025
How Allergies Can Lead to Dizziness Allergies are caused by your immune system having an overactive response to an allergen.
—Lindsay Curtis, Health, 25 Apr. 2025
This was different from the oohs and ahhs at Marvel products, whose viewers merely go along with standard overactive, violent manipulation.
—Armond White, National Review, 16 Apr. 2025
See All Example Sentences for overactive
Michael L. Millenson, Forbes.com, 22 May 2025
Hypothyroidism is an underactive thyroid gland, and hyperthyroidism is an overactive thyroid gland.
—Colleen Doherty, Verywell Health, 12 May 2025
How Allergies Can Lead to Dizziness Allergies are caused by your immune system having an overactive response to an allergen.
—Lindsay Curtis, Health, 25 Apr. 2025
This was different from the oohs and ahhs at Marvel products, whose viewers merely go along with standard overactive, violent manipulation.
—Armond White, National Review, 16 Apr. 2025
See All Example Sentences for overactive
Recent Examples of Synonyms for overactive
Adjective
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In a dramatic and unprecedented move Tuesday, the Florida Board of Governors voted 10–6 to reject Santa J. Ono’s nomination as the University of Florida’s next president in a heated session that more closely resembled a Senate confirmation hearing than the typical rubber-stamp vote.—
Garrett Shanley,
Miami Herald,
3 June 2025
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Nine maps were submitted by citizens, Precinct 2 Commissioner Alisa Simmons said during heated debate at Tuesday’s meeting.—
Cody Copeland,
Fort Worth Star-Telegram,
3 June 2025
Adjective
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Kids might be excited about the end of the school year and for summer to begin, but many working parents who don’t know how to fill their kids’ long summer days may be feeling some dread right about now.—
Medora Lee,
USA Today,
8 June 2025
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That had Vidovic excited about placing this team at the top of the state’s history list.—
Jeff Vorva,
Chicago Tribune,
8 June 2025
Adjective
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Ernst faced a number of agitated constituents at a town hall on Friday who expressed concerns that Republican cuts to Medicaid in the bill that would fund Trump's legislative agenda.—
Benjamin Siegel,
ABC News,
2 June 2025
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Published in 2019, the book follows a woman named Lillian who becomes the caretaker of her old friend Madison's twin stepchildren — who spontaneously ignite in flames when agitated.—
Rachel Raposas,
People.com,
2 June 2025
Adjective
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One key area of interest is the amygdala — a brain region that becomes notably hyperactive in mood and anxiety disorders.—
Jenny Lehmann,
Discover Magazine,
1 May 2025
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For example, a child who eats copious amounts of candy on Halloween may be less likely to become hyperactive afterward.—
Dani Blum,
New York Times,
25 Apr. 2025
Cite this Entry
“Overactive.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/overactive. Accessed 12 Jun. 2025.
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