diverseness vs multifariousness

diverseness and multifariousness both are nouns.

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

As nouns, diverseness and multifariousness are synonyms defined as:

Other synonyms of diverseness include diversity, variety.

diverseness (noun)	multifariousness (noun)
noticeable heterogeneity	noticeable heterogeneity