candidness vs directness

candidness and directness both are nouns.

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

As nouns, candidness and directness are synonyms defined as:

candidness and directness: the quality of being honest and straightforward in attitude and speech

Other synonyms of candidness include candor, candour, forthrightness, frankness.

candidness (noun)	directness (noun)
the quality of being honest and straightforward in attitude and speech	trueness of course toward a goal
	the quality of being honest and straightforward in attitude and speech