over·​ac·​tive | \ ˌō-vər-ˈak-tiv How to pronounce overactive (audio) \

Definition of overactive

: excessively or abnormally active overactive glands an overactive imagination

Other Words from overactive

overactivity \ ˌō-​vər-​ak-​ˈti-​və-​tē How to pronounce overactive (audio) \ noun

Examples of overactive in a Sentence

She has an overactive bladder. His crazy ideas are products of an overactive imagination.
Recent Examples on the Web Depending on the client, stretching overactive muscles is important, but stretching weakened or lengthened muscles can be detrimental. Ian Douglass, Men's Health, 4 Apr. 2022 But accidents, boredom, overactive bladders, and curious jaws are only one part of the picture. Wes Siler, Outside Online, 3 Feb. 2022 These medicines work by dialing down the overactive immune response that causes eczema flares. Stephanie Watson, SELF, 8 Apr. 2022 The anti-inflammatory appears to reduce the overactive immune response that helps COVID-19 destroy the lungs, researchers said. al, 4 Mar. 2022 Parents can distract themselves from fearful thoughts and help children with overactive imaginations by providing happier things to focus on. Daryl Austin, USA TODAY, 1 Mar. 2022 Basically, any kind of skin irritation can trigger those overactive nerves, causing spasms. Rachel Nall, Msn, SELF, 10 Feb. 2022 Soothing topical ingredients will help to sedate, calm and comfort overactive skin by reducing redness. Renée Rouleau, refinery29.com, 28 Jan. 2022 With psoriasis, overactive T-cells -- which are among the body's best defenders -- cause inflammation that creates raised, scaly patches on the skin. Sandee Lamotte, CNN, 27 Jan. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'overactive.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of overactive

1647, in the meaning defined above

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Time Traveler for overactive

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The first known use of overactive was in 1647

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Last Updated

12 May 2022

Cite this Entry

“Overactive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overactive. Accessed 21 May. 2022.

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More Definitions for overactive


over·​ac·​tive | \ ˌō-və-ˈrak-tiv How to pronounce overactive (audio) \

Medical Definition of overactive

: excessively or abnormally active an overactive mind overactive glands

Other Words from overactive

overactivity \ -​ˌrak-​ˈtiv-​ət-​ē How to pronounce overactive (audio) \ noun, plural overactivities

More from Merriam-Webster on overactive

Nglish: Translation of overactive for Spanish Speakers


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