[tre.men.dous] adj [L tremendus, fr. gerundive of tremere] (1632) 1: being such as may excite trembling or arouse dread, awe, or terror
2. a: notable by reason of extreme size, power, greatness, or excellence--often used as a generalized term of approval b: unusually large: huge syn see monstrous -- tre.men.dous.ly adv -- tre.men.dous.ness n