adj .
constant ; lasting a long time ; inveterate 지속적인 ; 오랜 기간 계속되는 ; 만성의

• Someone who always comes in last could be called a chronic loser.
• Chronic is usually associated with something negative or undesirable : chronic illness, chronic failure, chronic depression. You would be much less likely to encounter a reference to chronic success or chronic happiness, unless the writer or speaker was being ironic.