N-UNCOUNT
無法描述;難以形容
You can say that something is beyond description, or that it defies description, to emphasize that it is very unusual, impressive, terrible, or extreme.
例句
His face is weary beyond description...
他一臉難以形容的疲憊。
We were in a disaster situation that defies description.
我們陷入了難以言表的糟糕處境。