deteriorate

verb

de·​te·​ri·​o·​rate di-ˈtir-ē-ə-ˌrāt How to pronounce deteriorate (audio)
dē-
deteriorated; deteriorating

transitive verb

1
: to make inferior in quality or value : impair
Exposure to sunlight may deteriorate the paint.
2

intransitive verb

: to become impaired in quality, functioning, or condition : degenerate
allowed a tradition of academic excellence to deteriorate
his health deteriorated
deteriorative adjective

Examples of deteriorate in a Sentence

efforts to save a deteriorating rain forest Exposure to rain and sun will gradually deteriorate the paint.
Recent Examples on the Web Now the fate of the deteriorating site is in limbo. Joe Marusak, Charlotte Observer, 16 Apr. 2024 Adverse health effects increase as air quality deteriorates. Staff Reports, The Arizona Republic, 16 Apr. 2024 Musk announced the decision to cut headcount by potentially more than 14,000 people globally amid the deteriorating outlook for EV sales. Edward Ludlow, Fortune, 15 Apr. 2024 But the federal agency acknowledged last year that the funds would fall short because costs to repair and expand the deteriorating plant had increased to nearly $1 billion. Tammy Murga, San Diego Union-Tribune, 12 Apr. 2024 The Burlington-Bristol Bridge: Preparing for evacuations Many of the deficiencies found in bridges outside of the nation’s major ports are also a result of deteriorating barriers around the piers. Mike Baker, New York Times, 6 Apr. 2024 But that’s also contributed to its deteriorating health. Kevin Ambrose, Washington Post, 5 Apr. 2024 For at least 250 years, blacksmiths used a forge built inside the base of the tower that significantly deteriorated the fragile selenite stones at the base. Elisabetta Povoledo, New York Times, 4 Apr. 2024 The company’s financial performance has deteriorated, its stock has underperformed and its directors have not looked out for shareholders, Trian said. Meg James, Los Angeles Times, 2 Apr. 2024

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

Word History

Etymology

Late Latin deterioratus, past participle of deteriorare, from Latin deterior worse, from de- + -ter (suffix as in Latin uter which of two) + -ior (comparative suffix) — more at whether entry 2, -er

First Known Use

1572, in the meaning defined at transitive sense 1

Time Traveler
The first known use of deteriorate was in 1572

Dictionary Entries Near deteriorate

Cite this Entry

“Deteriorate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/deteriorate. Accessed 23 Apr. 2024.

Kids Definition

deteriorate

verb
de·​te·​ri·​o·​rate di-ˈtir-ē-ə-ˌrāt How to pronounce deteriorate (audio)
deteriorated; deteriorating
1
: to make or become worse or of less value : degenerate
2
deterioration
-ˌtir-ē-ə-ˈrā-shən
noun
deteriorative adjective

Medical Definition

deteriorate

intransitive verb
de·​te·​ri·​o·​rate di-ˈtir-ē-ə-ˌrāt How to pronounce deteriorate (audio)
deteriorated; deteriorating
: to become impaired in quality, functioning, or condition : degenerate
her health deteriorated
deteriorating vision

More from Merriam-Webster on deteriorate

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