<p><strong>Adjective:</strong></p><ul><li>not knowable; incapable of being known or understood.</li></ul><p><strong>Noun:</strong></p><ul><li>something that is unknowable.</li><li>the Unknowable, the postulated reality lying behind all phenomena but not cognizable by any of the processes by which the mind cognizes phenomenal objects.</li></ul><p><strong>End of Response</strong></p>