muscularity vs muscular

muscularity is a noun but muscular is not a noun.

Word	Noun	Adjective	Verb	Adverb
muscularity	Yes	No	No	No
muscular	No	Yes	No	No

muscularity (noun)	muscular (noun)
possessing muscular strength
an imaginative lively style (especially style of writing)
the physiological state of having or consisting of muscle

muscularity (adjective)	muscular (adjective)
	having a robust muscular body-build characterized by predominance of structures (bone and muscle and connective tissue) developed from the embryonic mesodermal layer
	of or relating to or consisting of muscle
	having or suggesting great physical power or force
	(of a person) possessing physical strength and weight; rugged and powerful