profundity

(noun) wisdom that is recondite and abstruse and profound. Synonyms: reconditeness, abstruseness, abstrusity, profoundness. Example: "The anthropologist was impressed by the reconditeness of the native proverbs."

(noun) intellectual depth; penetrating knowledge; keen insight; etc. Synonyms: profoundness. Examples: "The depth of my feeling." "The profoundness of the silence."

(noun) the intellectual ability to penetrate deeply into ideas. Synonyms: astuteness, profoundness, depth, deepness.

(noun) the quality of being physically deep. Synonyms: deepness, profoundness. Example: "The profundity of the mine was almost a mile."