Definitions for thing-in-itself
Random House Webster's College Dictionary
thing′-in-itself′(n.)(pl.)things′-in-themselves′.
(in Kantian philosophy) reality as it is apart from experience.
Category: Philosphy
Ref: Compare noumenon
Origin of thing-in-itself:
1650–60; trans. of G Ding an sich
Princeton's WordNet
noumenon, thing-in-itself(noun)
the intellectual conception of a thing as it is in itself, not as it is known through perception
Wiktionary
thing-in-itself(Noun)
In the philosophy of Immanuel Kant (1724-1804) and those whom he influenced, a thing as it is independent of any conceptualization or perception by the human mind, postulated by practical reason but existing in a condition which is in principle unknowable and unexperienceable.
Origin: Literal translation of the German term Ding an sich.
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