profundity vs abstrusity

profundity and abstrusity both are nouns.

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

As nouns, profundity and abstrusity are synonyms defined as:

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

Other synonyms of profundity include abstruseness, profoundness, reconditeness.

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