Thing-in-itself

"Noumena" redirects here. For the band, see Noumena (band). The noumenon (plural: noumena) classically refers to an object of human inquiry, understanding or cognition. The term is generally used in contrast with, or in relation to, "phenomenon" (plural: phenomena), which refers to appearances, or objects of the senses. That which is perceived but not tangible.
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Noun
1. the intellectual conception of a thing as it is in itself, not as it is known through perception
(synonym) noumenon
(hypernym) content, cognitive content, mental object