chronic

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.

Definitions of chronic
1

adj being long-lasting and recurrent or characterized by long suffering

chronic indigestion”
“a chronic shortage of funds”
“a chronic invalid”
Synonyms:
degenerative
(of illness) marked by gradual deterioration of organs and cells along with loss of function
Antonyms:
acute
having or experiencing a rapid onset and short but severe course
subacute
less than acute; relating to a disease present in a person with no symptoms of it
show more antonyms...

adj of long duration

chronic money problems”
Synonyms:
continuing
long
primarily temporal sense; being or indicating a relatively great or greater than average duration or passage of time or a duration as specified

adj habitual

“a chronic smoker”
Synonyms:
inveterate
usual
occurring or encountered or experienced or observed frequently or in accordance with regular practice or procedure

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