1590s, "pertaining to Pyrrho," skeptic philosopher of Elis (c.360-c.275 B.C.E.), who held the impossibility of attaining certainty of knowledge. Related: Pyrrhonism; Pyrrhonist.
It troubles no one,—a pyrrhonic posture is the easiest of attitudes.
What if that old pyrrhonic notion were the true solution of the problem of the Universe?