Source : Webster's Revised Unabridged Dictionary (1913)

Straightforward \Straight`for"ward\, a.
   Proceeding in a straight course or manner; not deviating;
   honest; frank. -- adv. In a straightforward manner. --
   {Straight`for"ward*ly}, adv. -- {Straight`for"ward*ness}, n.

Source : WordNet®

straightforwardness
     n 1: the quality of being direct and straightforward; "what some
          people take for rudeness is really straightforwardness"
          [syn: {downrightness}]
     2: without hypocrisy; "the singleness of his motives could not
        be questioned" [syn: {singleness}]