014 At one’s wit’s end

At one’s wit’s end

無計可施

 (PW)

anxious, frantic

I need to speak with him to finish the report by tomorrow but he’s not available.  I am at my wit’s end.

(MWusingEnglish)

at a loss for a means of solving a problem

 

(thePhraseFinder)

 Meaning

Perplexed; unable to think what to do.

Origin

 

From the Bible, Psalms 107:27 (King James Version):

They reel to and fro, and stagger like a drunken man, and are at their wits' end.