simmpleness vs simplicity

simmpleness and simplicity both are nouns.

Word	Noun	Adjective	Verb	Adverb
simmpleness	Yes	No	No	No
simplicity	Yes	No	No	No

As nouns, simmpleness and simplicity are synonyms defined as:

simmpleness (noun)	simplicity (noun)
absence of affectation or pretense	freedom from difficulty or hardship or effort
	lack of ornamentation
	the quality of being simple or uncompounded
	absence of affectation or pretense
	a lack of penetration or subtlety