astuteness vs deepness

astuteness and deepness both are nouns.

Word	Noun	Adjective	Verb	Adverb
astuteness	Yes	No	No	No
deepness	Yes	No	No	No

As nouns, astuteness and deepness are synonyms defined as:

astuteness and deepness: the intellectual ability to penetrate deeply into ideas

Other synonyms of astuteness include depth, profoundness, profundity.

astuteness (noun)	deepness (noun)
intelligence manifested by being astute (as in business dealings)	the quality of being physically deep
the intellectual ability to penetrate deeply into ideas	the extent downward or backward or inward
	a low pitch that is loud and voluminous
	the intellectual ability to penetrate deeply into ideas