in·cor·ri·gi·ble /ɪnˈkɒrədʒəbəl $ -ˈkɔː-/ adjectiveadj BAD PERSONsomeone who is incorrigible is bad in a way that cannot be changed or improved – often used humorously 屡教不改的,不可救药的〔常为幽默用法〕an incorrigible liar/rogue etc 撒谎成性、屡教不改的人/不可救药的捣蛋鬼等
Peter, you are an incorrigible flirt! 彼得,你总喜欢跟女人调情,真是不可救药!
—incorrigibly adverbadv