Definitions

chronic

[kron-ik] / ˈkrɒn ɪk /

ADJECTIVE

incessant, never-ending

Synonyms

STRONGEST

constant continual continuing continuous deep-rooted deep-seated habitual incurable lifelong lingering persistent protracted recurrent recurring sustained

WEAK

abiding ceaseless confirmed enduring ever-present fixed inborn inbred ineradicable ingrained inveterate lasting long-lived long-standing obstinate perennial persisting prolonged rooted routine settled stubborn tenacious unabating unmitigated unyielding usual

Antonyms

STRONGEST

ceasing ending halting inconstant infrequent intermittent interrupted occasional stopping temporary

WEAK

curable eradicable

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.

And what felt worst was that I was working on a book about my other chronic illnesses.

From Slate • Apr. 18, 2026

For my peers battling acne, eczema or chronic sensitivity, most of the remedies didn’t seem to work.

From The Wall Street Journal • Apr. 17, 2026

Kayan, who is now 13, was already living with several complex medical conditions including chronic kidney disease, and the eight-week course of vitamin D prescribed by his GP was in line with recommendations.

From BBC • Apr. 16, 2026

IBS is a chronic digestive disorder that affects roughly 10% of people in the U.S.

From Science Daily • Apr. 16, 2026

It was clear to the doctors that Ernest’s chronic colitis had severely compromised his digestive system.

From "Big Science" by Michael Hiltzik

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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