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Wiktionary
ironism

n. (context philosophy English) A state of doubt regarding one's own "vocabulary" (set of communicative beliefs) that cannot be removed by making arguments in that vocabulary.

Wikipedia
Ironism

Ironist (n. Ironism) (from Greek: eiron, eironeia), a term coined by Richard Rorty, describes someone who fulfills three conditions:

In Contingency, Irony, and Solidarity, Rorty argues that Proust, Nietzsche, Foucault, Heidegger, Derrida, and Nabokov, among others, all exemplify Ironism to different extents.