What is the meaning of Incorrigible?

Defective and impossible to materially correct or set aright.

Incurably depraved; not reformable.

Impervious to correction by punishment or pain.

Unmanageable.

Determined, unalterable, hence impossible to improve upon.

Incurable.

An incorrigibly bad individual.

incorrigible

an incorrigible

insoluble, unmanageable

irredeemable, not reformable

unpunished

Source: wiktionary.org