: excessively aggressive
a child displaying overaggressive behavior in school
overaggressive drivers
… unnecessary care such as antibiotics for the common cold or overaggressive treatment of diabetes, leading to sometimes fatal hypoglycemia. Dan Morgan
overaggressively adverb
driving overaggressively
We would call the show overaggressively quirky if it weren't so amusing. The Boston Globe
overaggressiveness noun
overaggressiveness almost cost her the title. Barry McDermott

Examples of overaggressive in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
An overaggressive quarterback who holds the ball too long will be playing right into Oklahoma State’s hands. C.j. Doon, baltimoresun.com, 27 Nov. 2021 An overaggressive Joseph bit on a double move, allowing Jaguars wide receiver Zay Jones to catch a 59-yard touchdown from quarterback Trevor Lawrence. Dallas News, 18 Dec. 2022

Word History

First Known Use

1859, in the meaning defined above

Time Traveler
The first known use of overaggressive was in 1859

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Cite this Entry

“Overaggressive.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overaggressive. Accessed 25 Apr. 2025.

Medical Definition

overaggressive

adjective
: excessively aggressive
an overaggressive personality
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