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Synonyms

deteriorate

American  
[dih-teer-ee-uh-reyt] / dɪˈtɪər i əˌreɪt /

verb (used with or without object)

deteriorated, deteriorating
  1. to make or become worse or inferior in condition, character, quality, value, etc.

    Synonyms:
    worsen, decline, degenerate
  2. to disintegrate or wear away.


deteriorate British  
/ dɪˈtɪərɪəˌreɪt /

verb

  1. to make or become worse or lower in quality, value, character, etc; depreciate

  2. (intr) to wear away or disintegrate

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Other Word Forms

  • deterioration noun
  • deteriorative adjective
  • undeteriorated adjective
  • undeteriorative adjective

Etymology

Origin of deteriorate

First recorded in 1565–75; from Late Latin dēteriōrātus “made worse,” past participle of dēteriōrāre “to make worse,” from Latin dēterior “worse,” from de- + -ter-, element in adjectives relating to spatial orientation + -ior, comparative suffix; exterior, interior

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

This means when fundamentals deteriorate, it’s difficult for the ETFs to meet redemptions quickly enough.

From MarketWatch • Apr. 1, 2026

For longevity seekers like Scott and Chitwood, the reasons behind their pursuit is simple: They see the way older people deteriorate, and they want to ensure they avoid that fate.

From Slate • Mar. 30, 2026

In response, President Donald Trump signed an executive order to ensure TSA agents are paid, an emergency measure aimed at stabilizing the workforce before conditions deteriorate further.

From Salon • Mar. 28, 2026

The firm expects net flows for retail private credit vehicles to deteriorate further into the second half of 2026, “given lower prospective returns and considerable negative media coverage on this topic.”

From Barron's • Mar. 4, 2026

When weariness sets in, a writer’s ability to behold an entire branch of the tree can deteriorate.

From "The Sense of Style" by Steven Pinker