candor vs frankness

candor and frankness both are nouns.

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

As nouns, candor and frankness are synonyms defined as:

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

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

candor (noun)	frankness (noun)
the quality of being honest and straightforward in attitude and speech	the quality of being honest and straightforward in attitude and speech
ability to make judgments free from discrimination or dishonesty	the trait of being blunt and outspoken