slow-wittedness vs denseness

slow-wittedness and denseness both are nouns.

Word	Noun	Adjective	Verb	Adverb
slow-wittedness	Yes	No	No	No
denseness	Yes	No	No	No

As nouns, slow-wittedness and denseness are synonyms defined as:

slow-wittedness and denseness: the quality of being mentally slow and limited

Other synonyms of slow-wittedness include dumbness.

slow-wittedness (noun)	denseness (noun)
the quality of being mentally slow and limited	the amount per unit size
	the spatial property of being crowded together
	the quality of being mentally slow and limited