act of God amperage armipotence authority beef black power brute force certainty charge charisma clout cogence cogency compulsion dint drive duress effect effectiveness effectuality energy fate fatefulness flower power force forcefulness full blast full force indefeasibility ineluctability inescapableness inevasibleness inevitability inevitable accident inevitableness inexorability inflexibility influence irrevocability main force main strength mana might might and main mightiness moxie muscle power necessity pizzazz poop potence potency potentiality power power pack power structure power struggle powerfulness predetermination prepotency productiveness productivity puissance pull punch push relentlessness sinew steam strength strong arm superiority superpower sureness unavoidable casualty unavoidableness uncontrollability undeflectability unpreventability unyieldingness validity vehemence vigor vim virility virtue virulence vis major vitality wattage weight