multifariousness vs variety

multifariousness and variety both are nouns.

Word	Noun	Adjective	Verb	Adverb
multifariousness	Yes	No	No	No
variety	Yes	No	No	No

As nouns, multifariousness and variety are synonyms defined as:

Other synonyms of multifariousness include diverseness, diversity.

multifariousness (noun)	variety (noun)
noticeable heterogeneity	noticeable heterogeneity
	a difference that is usually pleasant
	a category of things distinguished by some common characteristic or quality
	a show consisting of a series of short unrelated performances
	(biology) a taxonomic category consisting of members of a species that differ from others of the same species in minor but heritable characteristics
	a collection containing a variety of sorts of things