naturalness vs ingenuousness

naturalness and ingenuousness both are nouns.

Word	Noun	Adjective	Verb	Adverb
naturalness	Yes	No	No	No
ingenuousness	Yes	No	No	No

As nouns, naturalness and ingenuousness are synonyms defined as:

Other synonyms of naturalness include artlessness, innocence.

naturalness (noun)	ingenuousness (noun)
the quality of being natural or based on natural principles	openly straightforward or frank
the likeness of a representation to the thing represented	the quality of innocent naivete
the quality of innocent naivete