over·​ex·​ert ˌō-vər-ig-ˈzərt How to pronounce overexert (audio)
overexerted; overexerting; overexerts

transitive + intransitive

: to exert (oneself) too much
Muriel was sent to bed at the slightest symptom and warned against overexerting herself …Garrison Keillor
There are two types of heat stroke: exertional, which typically affects active people who overexert themselves in heat, and passive, which generally involves elderly or sedentary people who are exposed to high temperatures.Andrew Weil
People at highest risk of heat-related illness include the very young, the elderly and those of any age who overexert in the heat.Don Colburn
overexertion noun
plural overexertions
an injury caused by overexertion

Examples of overexert in a Sentence

Recent Examples on the Web But doctors also treated heart attacks from people overexerting themselves in the cold weather. Kendrick Calfee, Kansas City Star, 18 Jan. 2024 Mars can occasionally bring stress, however, so be wary of overexerting yourself in the name of home improvement. Tarot Astrologers, Chicago Tribune, 16 Sep. 2023 Please take the heat seriously and don’t overexert yourself during the hottest part of the day. Kxas-Tv (nbc5), Dallas News, 14 July 2023 Air quality isn’t great, so don’t overexert yourself. A. Camden Walker, Washington Post, 2 June 2023 Don’t overexert yourself and get enough sleep. Seth Mydans, New York Times, 29 Sep. 2022 Take care to stay hydrated and don’t overexert yourself during this hot weather. Dallas News, 4 July 2022 Do not overexert yourself when digging your vehicle out of snow. Jake Allen, The Indianapolis Star, 22 Dec. 2022 Don’t be in a rush and don’t overexert yourself on the way up, because going down is a completely different animal. oregonlive, 19 Sep. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'overexert.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1817, in the meaning defined above

Time Traveler
The first known use of overexert was in 1817

Dictionary Entries Near overexert

Cite this Entry

“Overexert.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overexert. Accessed 18 Apr. 2024.

Medical Definition


transitive verb
over·​ex·​ert ˌō-və-rig-ˈzərt How to pronounce overexert (audio)
: to exert (oneself) too much

intransitive verb

: to exert oneself to excess
overexertion noun

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