1714. R. Fiddes, Pract. Disc., II. 239. Here is a fix’d and unfrustrable reward secur’d.
1791. W. Jay, in Autobiog. (1855), I. Lett. vii. 82. Immutable in his nature, unfrustrable in his designs, ‘his council shall stand, and he will do all his pleasure.’
1832. Bp. Law, Charge to Clergy (R.). An irresistible, or, what the schoolmen have called, an unfrustrable power.
So Unfrustrably adv. (UN-1 11.)
1654. Owen, Doctr. Saint’s Persev., xii. 274. Those cloudy expressions of ‘irresistibly’ and ‘unfrustrably.’
1754. Edwards, Freed. Will, II. xii. 123. Such Means, as shall unfrustrably produce the End.
