deteriorate

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

Definition of deteriorate

transitive verb

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

intransitive verb

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

Keep scrolling for more

Other Words from deteriorate

deteriorative \ di-​ˈtir-​ē-​ə-​ˌrā-​tiv How to pronounce deteriorative (audio) , dē-​ \ 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

In Chile, stray dogs were the top concern among city dwellers surveyed this year, topping deteriorating sidewalks and theft. Anchorage Daily News, "The dog is one of the world’s most destructive mammals. Brazil proves it.," 21 Aug. 2019 The lawsuit, though, details a deteriorating 911 system in the months leading up to the death of 16-year-old Kyle, who died on April 10, 2018 after becoming trapped inside his Honda Odyssey while parked outside Seven Hills School after school. Alexander Coolidge, Cincinnati.com, "Lawsuit: Nine mistakes by City of Cincinnati that led to Kyle Plush's death," 12 Aug. 2019 Migrants cross the Venezuela border in growingly desperate conditions, sometimes walking for days and in various states of starvation or deteriorated health. Megan Janetsky, USA TODAY, "No country to call home? Some babies born in Colombia to Venezuelan parents lack birthright citizenship," 11 Aug. 2019 By the 1980s, the late-1880s building had fallen out of use and begun deteriorating until Garrett Carlson got involved. Stacey Mckenna, The Know, "10 bars, restaurants and art spaces that give new life to historic buildings," 8 Aug. 2019 Bridenstine has echoed Jacobs's concerns, and the Navy also worries about deteriorating forecast quality. Gabriel Popkin, Science | AAAS, "Forecasters fear 5G wireless technology will muck up weather predictions," 7 Aug. 2019 Red flags for an impending dividend cut include declining revenue and cash flow, rising debt and deteriorating business conditions. Russ Wiles, azcentral, "How to adjust your borrowing, saving and investing as interest rates continue their decline," 30 July 2019 That only gets worse when the conditions deteriorate, like during Saturday’s match that was played in temperatures close to 100 degrees. Jonah Dylan, courant.com, "Hartford Athletic looking to move on from Saturday’s collapse," 24 July 2019 Information about a woman’s deteriorating medical condition wasn’t communicated from one call taker to another, as required by national guidelines, The New York Times reported. Lynn Arditi, ProPublica, "Going Quiet: More States Are Hiding 911 Recordings From Families, Lawyers and the General Public," 16 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'deteriorate.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of deteriorate

1572, in the meaning defined at transitive sense 1

History and Etymology for deteriorate

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

Keep scrolling for more

Keep scrolling for more

More Definitions for deteriorate

deteriorate

verb

English Language Learners Definition of deteriorate

: to become worse as time passes
: to make (something) worse

deteriorate

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

Kids Definition of deteriorate

: to make or become worse or of less value Their relationship deteriorated.

deteriorate

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

Medical Definition of deteriorate

: to become impaired in quality, functioning, or condition : degenerate her health deteriorated deteriorating vision

Keep scrolling for more