Penumbrous

the penumbrous calm of the cathedral interior

Yet such Commissions were awarded, and far more frequently than might be supposed in view of the infinitely wider gulf—both social and educational—which divided the eighteenth-century Officer from the rank and file, than the penumbrous border line which separates them today.

Everyone knows God in his penumbrous knowledge of common esse.

This is that from which metaphor springs dissatisfying, penumbrous - the silence on occult matters, or those of predestination, of genetics or environment - and the source of circumlocution, the ambiguous alchemical directives.

In the early nineteenth century, when high school and college education was a rare experience for the average American citizen, judicial determination of vague, penumbrous fundamental rights was carried out by the educated classes.