chronic
Americanadjective
noun
adjective
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continuing for a long time; constantly recurring
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(of a disease) developing slowly, or of long duration Compare acute
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inveterate; habitual
a chronic smoker
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informal
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very bad
the play was chronic
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very serious
he left her in a chronic condition
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Relating to an illness or medical condition that is characterized by long duration or frequent recurrence. Diabetes and hypertension are chronic diseases.
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Compare acute
Other Word Forms
Etymology
Origin of chronic
First recorded in 1595–1605; from Latin chronicus, from Greek chronikós, equivalent to chrón(os) “time” + -ikos -ic
Explanation
If you smoke a cigarette once, you've simply made a bad choice. But if you're a chronic smoker, you've been smoking for a long time and will have a hard time stopping. The word chronic is used to describe things that occur over a long period of time and, in fact, comes from the Greek word for time, khronos. If you have chronic asthma, it is a recurring health issue for you. No one likes a chronic liar! A problem that cannot be solved can also be called chronic - think of the chronic food shortages in certain parts of the world.
Vocabulary lists containing chronic
List 2
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It's About Time: Chron and Temp
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100 SAT words Beginning with "C"
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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.
It’s the only way chronic labor shortages will be alleviated and bigger wage gains for workers are likely to be realized.
From MarketWatch ● Oct. 23, 2026
She’s advocated for awareness and co-hosts the podcast “Messy,” where she has talked about living with chronic illness, with actress Jamie-Lynn Sigler, who has had the neurological disorder for over 20 years.
From The Wall Street Journal ● Oct. 23, 2026
After struggling with chronic knee injuries during his rookie season, Thiero will be “shut down for a couple of days,” Redick said, then be considered day-to-day while he ramps up.
From Los Angeles Times ● Oct. 22, 2026
Among these are tiny microparticles which can penetrate deep into the lungs and, in some cases, enter the bloodstream, causing inflammation, chronic lung diseases and increased risk of premature death.
From BBC ● Oct. 20, 2026
He was solicitous toward Ethel Collins about this, since she’d been suffering with a chronic gum problem for years.
From "Endgame" by Frank Brady
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Get a wordDefinitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.