adj.无法改正的，屡教不改的
n.不改悔的人

He is an incorrigible liar, always spinning tales that no one believes.
他是个不可救药的说谎者，总是编造没人相信的故事。
Despite numerous warnings, her behavior remained incorrigible, leading to her eventual expulsion from the school.
尽管多次警告，她的行为依旧无法改正，最终被学校开除。
The incorrigible prankster managed to sneak into the principal's office without being detected.
那个顽皮捣蛋的人竟然能神不知鬼不觉地溜进校长办公室。
Her incorrigible habit of procrastination caused her to miss deadlines and lose assignments.
她那种改不掉的拖延症使她总是错过截止日期，丢掉作业。
The incorrigible teenager refused to listen to his parents' advice, insisting on pursuing his own reckless path.
那个不听劝告的青少年坚持走自己的冒险之路，对父母的建议置若罔闻。
The incorrigible optimist always sees the silver lining in every situation, no matter how dire it seems.
那个不可改变的乐观主义者总能在任何困境中看到希望的曙光。
His incorrigible appetite for adventure often landed him in trouble, but he always managed to find his way out.
他对冒险的无尽渴望常常给他带来麻烦，但他总能化险为夷。
The incorrigible gossip couldn't resist spreading rumors about her coworkers, causing a toxic work environment.
那个爱嚼舌根的人忍不住散播关于同事的流言蜚语，制造出一种恶劣的工作氛围。
She tried every discipline method, but her child's incorrigible nature seemed impervious to change.
她尝试了各种管教方式，但孩子那不可改变的本性似乎对改变无动于衷。
The incorrigible flirt seemed to have a magnetic charm that drew people in, yet never led to anything serious.
那个无法改变的花花公子似乎有一种迷人的魅力，却从未认真对待过任何人。