opaqueness

Estimated CEFR level: C2 — Proficiency

Estimated from word frequency; not an official CEFR classification.

Definition

noun incomprehensibility resulting from obscurity of meaning
noun the quality of being opaque to a degree; the degree to which something reduces the passage of light

From opaque + -ness.

It slept on in coarse opaqueness, covered with an impenetrable crust which he himself did not understand. — The Bishop of Cottontown: A Story of the Southern Cotton Mills, John Trotwood Moore
Beyond, the opaqueness was massive; to penetrate thither seemed horrible, an entrance into it appeared like an engulfment. — Les Misérables, Victor Hugo
And perhaps this opaqueness may be caused by some particles which some current brings from without; perhaps also, the heat communicates to the moon the property of emitting by the pores in its surface, the particles by which this effect is produced. — The Lives and Opinions of Eminent Philosophers, Diogenes Laertius

opacity

Type a word, a sentence, a book title, or a link to an English article. WordNet and the Classics answer.

Try

A library of classics · a vault of words · instant etymology & meaning