n.深奧;深刻;深厚;淵博
This is the profundity of our world. 這正是我們世界的深奧之處。
This response of the school-boy lies at the bottom of all spurious profundity. 小學生的這種反應是一切貌似深奧的東西的起因。
He impressed his audience by the profundity of his knowledge. 他知識淵博給聽眾留下了深刻的印象。