make (a) nonsense of something idiom UK
C2 使…显得荒谬;把…搞砸
to make something appear stupid or wrong, or to spoil something
His repeated lack of promotion makes nonsense of the theory that if you work hard you'll be successful. 他屡屡得不到提升，这让“只要努力就会成功”的理论成了无稽之谈。