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 condition causes the thyroid gland to produce too much thyroid hormones, which results in hyperthyroidism or an overactive thyroid.
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Armon Sadler, VIBE.com, 7 Aug. 2024
The pressure of having too much milk build up in the breasts can also cause an overactive letdown reflex and a fast flow of breast milk out of your breasts.
—Donna Murray, Rn, Parents, 30 July 2024
Heart disease Heart valve problems, such as mitral valve prolapse
Hyperthyroidism (overactive thyroid)
Stress, fear, and anxiety
What Medications Can Cause Heart Palpitations at Night?
Medications can also lead to palpitations, sometimes due to their effect on heart rhythm.
—Mark Gurarie, Verywell Health, 16 Sep. 2024
Graves’ disease is an autoimmune disorder in which the thyroid becomes overactive.
—Dawn Burkes, Los Angeles Times, 6 Aug. 2024
See all Example Sentences for overactive 
Armon Sadler, VIBE.com, 7 Aug. 2024
The pressure of having too much milk build up in the breasts can also cause an overactive letdown reflex and a fast flow of breast milk out of your breasts.
—Donna Murray, Rn, Parents, 30 July 2024
Heart disease Heart valve problems, such as mitral valve prolapse
Hyperthyroidism (overactive thyroid)
Stress, fear, and anxiety
What Medications Can Cause Heart Palpitations at Night?
Medications can also lead to palpitations, sometimes due to their effect on heart rhythm.
—Mark Gurarie, Verywell Health, 16 Sep. 2024
Graves’ disease is an autoimmune disorder in which the thyroid becomes overactive.
—Dawn Burkes, Los Angeles Times, 6 Aug. 2024
See all Example Sentences for overactive
Recent Examples of Synonyms for overactive
Adjective
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Following a heated presidential contest, political coverage and commentary can feel unavoidable.Vox Staff, Vox, 6 Nov. 2024
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Unusually for the quadricycle segment, the Mobilize vehicles come with a driver airbag as standard, as well as heated driver's seat and aircon.Paul Ridden, New Atlas, 5 Nov. 2024
Adjective
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Universal Studios is apparently just as eager as Back to the Future fans for a fourth film — but director Robert Zemeckis isn’t as excited about the possibility.Sara Belcher, People.com, 5 Nov. 2024
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Indeed, across social media on Wednesday, people were hoping — praying, even — that these ominous, panic-inducing spam messages might finally end, posting pictures of thoughtful politicians, or even excited Oprahs, to illustrate the point.David Mack, Rolling Stone, 5 Nov. 2024
Adjective
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And if the person become agitated or aggressive, call 911.Bill Laytner, Detroit Free Press, 25 Oct. 2024
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Noah, prompted by Eli to recall his mysterious past, enters a wordless state of terror; Eli, increasingly agitated, demands a nonverbal grade schooler tell him what’s going on.Alison Herman, Variety, 25 Oct. 2024
Adjective
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Soon enough, the school's overrun with hyperactive kiddos bouncing off the walls, and the teachers have to devise a plan to burn off this sugar buzz while tracking down the sticky-fingered culprit running loose in their halls.Nicole Briese, People.com, 22 Oct. 2024
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This is particularly true of females with the disorder, whose behavior as children tends to be more inattentive than hyperactive like the stereotypical boy with ADHD.Lydia Denworth, Scientific American, 15 Oct. 2024
Thesaurus Entries Near overactive
Cite this Entry
“Overactive.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/overactive. Accessed 21 Nov. 2024.
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