simpleness vs simplicity

simpleness and simplicity both are nouns.

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

As nouns, simpleness and simplicity are synonyms defined as:

As nouns, simpleness and simplicity are synonyms defined as:

Other synonyms of simpleness include chasteness, restraint.

As nouns, simpleness and simplicity are synonyms defined as:

simpleness and simplicity: freedom from difficulty or hardship or effort

Other synonyms of simpleness include ease, easiness.

As nouns, simpleness and simplicity are synonyms defined as:

Other synonyms of simpleness include simple mindedness.

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