ingenuousness vs directness

ingenuousness and directness both are nouns.

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

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

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

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

ingenuousness (noun)	directness (noun)
openly straightforward or frank	trueness of course toward a goal
the quality of innocent naivete	the quality of being honest and straightforward in attitude and speech