ideophobia means an inordinate fear of ideas, especially new ones, or of reasoning. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
Why “ideophobia” is a great word
IDEOPHOBIA — [Noun] An irrational, pathological fear of ideas, especially novel or unfamiliar ones, or of the process of abstract reasoning itself. From the combining form ideo- (from Greek idea, “form, idea, pattern”) and -phobia (from Greek phobos, “fear”). Unlike dogmatism, a fortress of rigid certainty, or misoneism, a general aversion to novelty, ideophobia is a clinical recoil from the internal landscape of concepts. It manifests as the visceral flinch at a philosophical proposition, the paralysis induced by an unopened treatise, and the cold sweat breaking out at the silent pressure of an unwelcome thought—a profound terror of being altered not by an event, but by the mind’s own terrifying capacity.
Etymology
From ideo- + -phobia.
noun
- An inordinate fear of ideas, especially new ones, or of reasoning.