Correct

闻所未闻

/ wén suǒ wèi wén /
Strokes

Definition

unheard of/an extremely rare and unprecedented event

Example

Definition

unheard of; unknown

1
Zhè
这
jiàn
件
shì
事
wǒ
我
wénsuǒwèiwén
闻所未闻
。

I have never heard of it.