incorrigible
adjective /ɪnˈkɒrɪdʒəbl/
/ɪnˈkɔːrɪdʒəbl/
(disapproving or humorous)- having bad habits that cannot be changed or improved
无法改正的；屡教不改的 - Her husband is an incorrigible flirt.
她的丈夫是个积习难改的调情老手。 - You're incorrigible!
你简直不可救药！ - There were new allegations against his incorrigible wife.
对他不可救药的妻子有了新的指控。
词源Middle English: from Old French, or from Latin incorrigibilis, from in- ‘not’ + corrigibilis (from Latin corrigere ‘to correct’). - Her husband is an incorrigible flirt.