[im.pal.pa.ble] adj (1509) 1 a: incapable of being felt by touch: intangible "the ~ aura of power that emanated from him --Osbert Sitwell" b: so finely divided that no grains or grit can be felt "rock worn to an ~ powder"
2: not readily discerned by the mind -- im.pal.pa.bil.i.ty n -- im.pal.pa.bly adv