impuissant

helpless impotent inadequate incapable not able powerless sidelined unfit weak

can't cut it can't hack it can't make the grade clumsy hog-tied incapacitated incompetent ineffectual inefficacious inefficient inept inoperative no can do no good not cut out for not equal to not up to out of commission unfitted unqualified unskilled

able capable competent fit potent qualified strong sufficient

adequate skillful talented

anemic feeble fragile frail hesitant powerless shaky sickly sluggish uncertain unsteady weakened wobbly

debilitated decrepit delicate effete enervated epicene exhausted faint flaccid flimsy forceless infirm insubstantial irresolute lackadaisical languid languorous limp makeshift out of gas prostrate puny rickety rocky rotten senile spent spindly supine torpid undependable unsound unsubstantial wasted wavering weakly

healthy hearty powerful stable strong unbreakable

capable fit potent