The lecture was mind-numbingly tedious.

那堂课冗长乏味。

《牛津词典》

Tomorrow is supposed to be mind-numbingly cold . I need to get out my heavy winter jacket.

明天应该非常冷，我需要拿出我的厚棉袄了。

youdao

In their defense, EULAese is somind-numbingly boring that it’s a kind of torture to read these things.

不过说句为他们辩护的话，终端用户协议实在是沉闷得让人头晕脑胀，读这些东西简直就像是受酷刑。

youdao

In 1997-98, Washington numbingly junked up the tax code with additional incomprehensible provisions.

FORBES: Fact and Comment

The tax code is mind-numbingly complex, as dedicated to manipulating individual behavior as to raising government funds.

FORBES: The Unhappy, Big-Government Feeding 100th Birthday Of America's Income Tax

Each of these groups finds themselves in a room with a recruiter asking mind-numbingly silly interview questions.

FORBES: Silly Interview Questions