Uninstructed in a sentence as an adjective

Bound by a fetter of views, the uninstructed run-of-the-mill person is not freed from birth, aging, & death, from sorrow, lamentation, pain, distress, & despair.

Just as if they were to shoot a man with an arrow and, right afterward, were to shoot him with another one, so that he would feel the pains of two arrows; in the same way, when touched with a feeling of pain, the uninstructed run-of-the-mill person sorrows, grieves, & laments, beats his breast, becomes distraught. So he feels two pains, physical & mental.

The OP quotes Keynes:"That it reached conclusions quite different from what the ordinary uninstructed person would expect added, I suppose, to its intellectual prestige.

“Oh, yes,” Ellis told me, “the meetings can get very lively at times.”I asked him for an example of controversy.“Well, here’s one inflicted on us by one of your countrymen,” he said, smiling lightly, and opened a hefty reference work containing illustrations of mosses whose most notable characteristic to the uninstructed eye was their uncanny similarity one to another.

Uninstructed definitions

adjective

lacking information or instruction; "lamentably unenlightened as to the laws"

See also: unenlightened naive