a. Not producing the proper effect; without effect; inefficient; weak; useless; futile; unavailing;
The peony root has been much commended, . . . and yet has been by many found ineffectual. Boyle.
n. Ineffectualness. [ R. ] [ 1913 Webster ]
adv. Without effect; in vain. [ 1913 Webster ]
Hereford . . . had been besieged for about two months ineffectually by the Scots. Ludlow. [ 1913 Webster ]
n. Lack of effect, or of power to produce it; inefficacy. [ 1913 Webster ]
The ineffectualness of some men's devotion. Wake. [ 1913 Webster ]