OF NO AVAIL

(1) {adj. phr.}, {formal} Having no effect; useless, unsuccessful. * /Tom's practicing was of no avail. He was sick on the day of the game./ * /Mary's attempts to learn embroidering were to no avail./(2) {adv. phr.}, {formal} Without result; unsuccessfully. * /John tried to pull the heavy cart, but to no avail./ * /Mary studied hard for the test but to no avail./ Compare: IN VAIN.