incorrigible (adj.) Look up incorrigible at
mid-14c., "incurable (of diseases, venom, etc.); extravagant (of expense); implacable (of hearts)," from Old French incorrigible "perfect, beyond rebuke or discipline" (14c.) or directly from Latin incorrigibilis "not to be corrected," from in- "not, opposite of" (see in- (1)) + corrigibilis, from corrigere "to correct" (see correct (v.)). From mid-15c. as "incapable of improvement" (of persons). Related: Incorrigibly. As a noun, from 1746.