chronic

adjective

chron·​ic ˈkrä-nik 

1

a

: continuing or occurring again and again for a long time

chronic pain

chronic illness

chronic experiments

see also chronic disease, chronic fatigue syndrome, chronic obstructive pulmonary disease, chronic traumatic encephalopathy, chronic wasting disease

b

: being, providing, or requiring long-term medical care (as for a chronic disease)

chronic medical care

the special needs of chronic patients

2

a

: always present or encountered

especially : constantly vexing, weakening, or troubling

chronic petty warfare

… chronic meddling in one another's domestic affairs …

—Amatzia Baram

b

: being such habitually

a chronic grumbler

chronic noun

plural chronics

Apart from the lady with the sore throat, there were four more new visits, several follow-up calls, and the endless list of chronics.

—Elizabeth Scott

chronically

ˈkrä-ni-k(ə-)lē 

adverb

She is chronically ill.

people who are chronically late

The schools are chronically short of funds.

Synonyms of chronic

• persistent
• serial
• habitual
• inveterate
• regular
• steady
• stubborn
• addicted

Choose the Right Synonym for chronic

inveterate, confirmed, chronic mean firmly established.

inveterate applies to a habit, attitude, or feeling of such long existence as to be practically ineradicable or unalterable.

an inveterate smoker

confirmed implies a growing stronger and firmer with time so as to resist change or reform.

a confirmed bachelor

chronic suggests something that is persistent or endlessly recurrent and troublesome.

a chronic complainer

Examples of chronic in a Sentence

He suffers from chronic arthritis.

a chronic need for attention

Inflation has become a chronic condition in the economy.

Don't bother seeing that film—it's chronic.

Recent Examples on the Web

Satellite imagery showing the crisis surrounding Lake Urmia, once one of the world’s largest saltwater lakes, highlights the twin threats of climate change and chronic mismanagement that have plagued Iran's water resources for decades. —MSNBC Newsweek, 4 Nov. 2025

In a review of electronic medical records, thousands of adults who had chronic insomnia and took melatonin for a year or longer had a 90% higher chance of heart failure over the next five years, compared with participants who had the same health factors but didn’t take melatonin. —Kristen Rogers, CNN Money, 4 Nov. 2025

Weil argues that following his anti-inflammatory food pyramid and taking up practices such as meditation, yoga, and tai chi can help prevent and treat these diseases of chronic inflammation. —Jason Liebowitz, The Atlantic, 4 Nov. 2025

But when users, including Kashmira herself, begin to suffer chronic pain as a result of the product, both siblings must confront the root cause behind their life-altering choices. —Literary Hub, 3 Nov. 2025

Word History

Etymology

borrowed from French chronique, going back to Middle French, borrowed from Late Latin chronicus, going back to Latin, "written in the form of annals," borrowed from Greek chronikós "of time, temporal, in order by time," from chrónos "time" + -ikos -ic entry 1 — more at chrono-

Note: Latin chronicus was used by medical writers (as Caelius Aurelianus, ca. early 5th century a.d.) to translate Greek chrónios "occurring again and again," used by Greek medical writers, though Greek chronikós, the source of chronicus, lacks this sense.

First Known Use

1601, in the meaning defined at sense 1a

Phrases Containing chronic

• chronic disease
• chronic fatigue syndrome
• chronic obstructive pulmonary disease
• chronic traumatic encephalopathy
• chronic wasting disease

Rhymes for chronic

• clonic
• conic
• phonic
• sonic
• tonic
• anharmonic
• anionic
• avionic
• catatonic
• cationic
• chorionic
• cosmogonic

Kids Definition

chronic

adjective

chron·​ic ˈkrän-ik 

1

: continuing or occurring again and again for a long time

a chronic disease

2

: habitual sense 2

a chronic complainer

chronically

-i-k(ə-)lē 

adverb

Etymology

from French chronique "chronic," from Greek chronikos "of time," from chronos "time" — related to anachronism, chronicle, synchronous

Medical Definition

chronic

1 of 2 adjective

chron·​ic ˈkrän-ik 

variants also chronical

-i-kəl 

1

a

: marked by long duration, by frequent recurrence over a long time, and often by slowly progressing seriousness : not acute

chronic indigestion

Her symptoms became chronic.

see also chronic disease, chronic fatigue syndrome, chronic obstructive pulmonary disease, chronic traumatic encephalopathy

b

: being, providing, or requiring long-term medical care (as for a chronic disease)

chronic care facilities

chronic treatment with antidiabetic medication

2

a

: having a slow progressive course of indefinite duration

chronic heart disease

chronic arthritis

chronic tuberculosis

compare acute sense 2b(1)

b

: infected with a disease-causing agent (as a virus) and remaining infectious over a long period of time but not necessarily expressing symptoms

chronic carriers of hepatitis B

chronically

-i-k(ə-)lē 

adverb

chronically ill patients

chronic

2 of 2 noun

: one that suffers from a chronic disease