un-understandability

From the occasion of Balaam’s astonishment, “when the first great critic proffered his opinion” (as the witty Mr. Whistler has put it spitefully), down to these times of flippant oracles of art, the well-intentioned student has been bewildered and swerved from his own opinions, discouraged, in short, by the conflict or un-understandability of warring teachers.