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.

Source: wiktionary

Their un-understandability, I suggested, was part of their charm?

Source: wiktionary

We have heard many Carolinians descant on Gullah, it is African say they, it is Afro-Americano say others, and having heard it several times ourself, it is the last word in gibberish and un-understandability.

Source: wiktionary

Maybe her un-understandability is what makes the Atlantic enthuse.

Source: wiktionary