incorrigible (adj.) Look up incorrigible at Dictionary.com
mid-14c., from Old French incorrigible (mid-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). Related: Incorrigibly. As a noun, from 1746.