modestness vs moderateness

modestness and moderateness both are nouns.

Word	Noun	Adjective	Verb	Adverb
modestness	Yes	No	No	No
moderateness	Yes	No	No	No

As nouns, modestness and moderateness are synonyms defined as:

modestness and moderateness: the property of being moderate in price or expenditures

Other synonyms of modestness include reasonableness.

modestness (noun)	moderateness (noun)
the property of being moderate in price or expenditures	quality of being moderate and avoiding extremes
freedom from vanity or conceit	the property of being moderate in price or expenditures