Origin of noumenal
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for noumenal
(So are all phenomenal bodies but reflections of the noumenal).
The phenomenal is a mode of the noumenal, as heat is a mode of motion.
There is no line of demarcation between the noumenal and phenomenal.
Spencer is careful to insist upon this relation of the phenomenal to the noumenal.Edward Caldwell Moore
So, from your own point of view, suppose a mind-stuff—λὀγος—a noumenal cosmic light such as is shadowed in the fourth gospel.Aphorisms and Reflections from the works of T. H. Huxley
Thomas Henry Huxley
Word Origin and History for noumenal
Online Etymology Dictionary, © 2010 Douglas Harper