profoundness

(noun) extremeness of degree. Example: "The profoundness of his ignorance."

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

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

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

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