Un-understandableness

The following passage of the opium-eater’s own, evidently intended to be very fine, possesses as much of what Jeremy Bentham calls un-understandableness, as any I have for some time met, even from the Kantean school.

Source: wiktionary

Where he erst arrived with weary brain, in search of dissipation, and found nothing but a new exertion and thus a painful over[-]strain; where he therefore had to complain of too great length, of too much seriousness, or finally of complete un[-]understandableness:[…]

Source: wiktionary

But we have not yet reached the height from which we may appreciate his originality and “un-understandableness.”

Source: wiktionary

His address on Robert Browning was a delight, dwelling especially on the spiritual side of this man’s gift to the world, though sometimes speaking of the un-understandableness of some of his poems.

Source: wiktionary