ingenuousness vs frankness

ingenuousness and frankness both are nouns.

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

As nouns, frankness is a hypernym of ingenuousness; that is, frankness is a word with a broader meaning than ingenuousness:

ingenuousness: openly straightforward or frank
frankness: the quality of being honest and straightforward in attitude and speech

Other hypernyms of ingenuousness include candidness, candor, candour, directness, forthrightness.

ingenuousness (noun)	frankness (noun)
openly straightforward or frank	the quality of being honest and straightforward in attitude and speech
the quality of innocent naivete	the trait of being blunt and outspoken