Wittgensteinian

/ (ˈvɪtɡənˌʃtaɪnɪən, -ˌstaɪnɪən) / adjective. (of a philosophical position) Derived from or related to the work of Ludwig Wittgenstein and especially the later (posthumously published) works (Philosophical Investigations and On Certainty) in which he attacks essentialism and stresses the open texture and variety of use of ordinary language.

Wittgensteinian

/ (ˈvɪtɡənˌʃtaɪnɪən, -ˌstaɪnɪən) / noun. One who believes or follows the principles of Ludwig Wittgenstein.