directness vs frankness

directness and frankness both are nouns.

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

As nouns, directness and frankness are synonyms defined as:

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

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

directness (noun)	frankness (noun)
trueness of course toward a goal	the quality of being honest and straightforward in attitude and speech
the quality of being honest and straightforward in attitude and speech	the trait of being blunt and outspoken