simpleness vs chasteness

simpleness and chasteness both are nouns.

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

As nouns, simpleness and chasteness are synonyms defined as:

Other synonyms of simpleness include restraint, simplicity.

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