incomprehensibility noun2 •The quality or state of being incomprehensible.The king here alludes, as he does in various other passages, to the ancient Academicians, or Sceptics, who taught the uncertainty and incomprehensibility of truth. — 1789 •Something that cannot be understood.That left Bradly as bemused as ever, for it posed another incomprehensibility: Why had Podson walked here? — 1938 formsincomprehensibilities