Frankness is associated with being candid, straightforward, blunt or outspoken. One may often resort to sarcasm when discussing a matter to ease the blow of reality and to have a laugh.
Honesty, however, is a much more difficult thing. Deepak Chopra talks about how your gut feelings are real because the cells of your stomach have not evolved to the point of understanding sarcasm.
Above all else, be honest with yourself and others……… anyway.