THESAURUS
run ragged
debilitated, drooping, droopy, enervated, enfeebled, fagged, faint, fainting, fatigued, feeling faint, flagging, footsore, frazzled, good and tired, jaded, languid, ready to drop, run-down, sagging, seedy, tired, tired-winged, toilworn, unrefreshed, unrestored, way-weary, wayworn, weak, weakened, wearied, weariful, weary, weary-footed, weary-laden, weary-winged, weary-worn, wilting, worn, worn-down