last expedient

At length I had recourse to the last expedient which remained to me, and the only one of which I ought to have made use.

Heaven put a last expedient into my head, that I had once heard Mr. Dulany speak of.

During her absence Sire d'Aulon, who could not give up the idea of winning the day, devised one last expedient.

As a last expedient I should recommend a second course of travel.

To search the sea-ports personally he regarded as a last expedient.