noumenalism
/ˈnuːmɪnəlɪz(ə)m/ /ˈnaʊmɪnəlɪz(ə)m/ /ˈnuːmɪn(ə)lɪz(ə)m/Philosophy
noun
Belief in the existence of noumena; a philosophical system based on this belief.
Origin
Late 19th century; earliest use found in The Philosophical Review. From noumenal + -ism.