at his wits end
 

* 1.out of patience

2.at a loss

3.exasperated

4.frustrated

English Related Words* a fool and his money are soon parted

* a load was taken off his mind

* a peacock in his pride

* a shadow of his former self

* abnormal end

* above his ability

* abused his office

* accept his opinion

* accepted his authority

* accepted his opinion

* according to his capability

* according to his means

* according to his needs

* according to his story

* according to his version