All 5 Uses

chronic
in
Maggie: A Girl of the Streets
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Down the avenue came boastfully sauntering a lad of sixteen years, although the chronic sneer of an ideal manhood already sat upon his lips.†
Chpt 1 *
They came to a stand a short distance away and yelled taunting oaths at the boy with the chronic sneer.†
Chpt 1
"Smash 'im, Jimmie, kick deh damn guts out of 'im," yelled Pete, the lad with the chronic sneer, in tones of delight.†
Chpt 1
During that time his sneer became chronic.†
Chpt 4
In the mingled light and gloom of an adjacent park, a handful of wet wanderers, in attitudes of chronic dejection, was scattered among the benches.†
Chpt 17

Definitions:

(1) (chronic)
of something bad: lasting a long time or happening repeatedly -- especially in relation to illness
(2) (meaning too rare to warrant focus)
More rarely, Chronics is a proper noun referring to an Italian pop and punk band.