profundity vs abstruseness

profundity and abstruseness both are nouns.

Word	Noun	Adjective	Verb	Adverb
profundity	Yes	No	No	No
abstruseness	Yes	No	No	No

As nouns, profundity and abstruseness are synonyms defined as:

profundity and abstruseness: wisdom that is recondite and abstruse and profound

Other synonyms of profundity include abstrusity, profoundness, reconditeness.

profundity (noun)	abstruseness (noun)
the quality of being physically deep	the quality of being unclear or abstruse and hard to understand
intellectual depth, penetrating knowledge, keen insight, etc; "the depth of my feeling"; "the profoundness of the silence"	wisdom that is recondite and abstruse and profound
the intellectual ability to penetrate deeply into ideas
wisdom that is recondite and abstruse and profound