| profoundness | (n) extremeness of degree, Example: the profoundness of his ignorance |
| astuteness | (n) the intellectual ability to penetrate deeply into ideas, Syn. depth, deepness, profundity, profoundness |
| deepness | (n) the quality of being physically deep, Syn. profundity, profoundness, Ant. shallowness, Example: the profundity of the mine was almost a mile |
| profundity | (n) intellectual depth; penetrating knowledge; keen insight; etc, Syn. profoundness, Ant. superficiality, Example: the depth of my feeling; the profoundness of the silence |
| reconditeness | (n) wisdom that is recondite and abstruse and profound, Syn. profoundness, profundity, abstruseness, abstrusity, Example: the anthropologist was impressed by the reconditeness of the native proverbs |