impairment

noun

im·​pair·​ment im-ˈper-mənt How to pronounce impairment (audio)
plural impairments
: the act of impairing something or the state or condition of being impaired : diminishment or loss of function or ability
… it does not help reverse the impairment of cognitive activity caused by diazepam …Corby Kummer
Trichloroethylene has been classified by EPA as a probable human carcinogen, although its primary effect is impairment of the central nervous system.Chemical & Engineering News
Persons with hearing impairments can now get information about local parks and their facilities by calling the recently installed TDD phone numbers within the Parks Department.Maryland Magazine
Studies show that roughly 11 percent of all kindergarteners have speech or language impairmentsThe Springfield (Massachusetts) Union-News

Examples of impairment in a Sentence

Recent Examples on the Web
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An officer trained to recognize impairment in drivers under the influence of drugs noted that while in detention, Clausen was unable to follow instructions or safely perform tests to assess possible impairment. Kansas City Star, 30 Oct. 2025 In just people with the earliest stages of Alzheimer’s who had mild cognitive impairment, however, the pill appeared to slow memory decline by 50% and to stop nearly all daily cognitive decline. Melissa Rudy, FOXNews.com, 30 Oct. 2025 But the true effect of ALZ-801 is hard to quantify because of the relatively small number of participants in the group with mild cognitive impairment. Jon Hamilton, NPR, 29 Oct. 2025 What the team found was that always or frequently listening to music was associated with the greatest benefits, with a 39% lower incidence of dementia and 17% lower incidence of cognitive impairment. New Atlas, 27 Oct. 2025 See All Example Sentences for impairment

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of impairment was in the 14th century

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Cite this Entry

“Impairment.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/impairment. Accessed 5 Nov. 2025.

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