im·​pair·​ment | \ im-ˈper-mənt How to pronounce impairment (audio) \
plural impairments

Definition of impairment

: 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

First Known Use of impairment

14th century, in the meaning defined above

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

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Cite this Entry

“Impairment.” Dictionary, Merriam-Webster, Accessed 19 Jan. 2021.

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How to pronounce impairment (audio)

English Language Learners Definition of impairment

: a condition in which a part of your body or mind is damaged and does not work well

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