forthrightness vs directness

forthrightness and directness both are nouns.

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

As nouns, forthrightness and directness are synonyms defined as:

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

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

forthrightness (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