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View synonyms for overactive

overactive

[ oh-ver-ak-tiv ]

adjective

  1. exceptionally or excessively active; too active.


overactive

/ ˌəʊvərˈæktɪv /

adjective

  1. inordinately active
  2. (of the thyroid or adrenal gland, nervous system, etc) functioning at too high a capacity
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012


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Other Words From

  • over·ac·tivi·ty over·active·ness noun
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Word History and Origins

Origin of overactive1

First recorded in 1640–50; over- + active
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Example Sentences

This misinterpretation wasn’t just the product of one man’s overactive imagination.

The allergy-like symptoms are probably the result of a person’s immune system becoming “a little too overactive in its task to clear the infection,” she said.

It’s known that an overactive immune response to SARS-CoV-2 can do more harm than help.

His reclusiveness and overactive mind made it difficult to maintain relationships.

What the drug does not do, he notes, is block the body’s overactive immune response.

The hunt for Christian Grey took months, and was complicated by an overactive rumor mill.

Either they say I am a liar, or, as one person put it, “I have an overactive imagination.”

Quieting the overactive and undisciplined mind is a challenging task.

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