FANATICISM

n. 1 devotion, dedication, devotedness; infatuation, enthusiasm, fervour, zeal, obsessiveness, franticness, frenzy, hysteria Her fanaticism for rock musicians is getting a bit out of hand 2 monomania, single-mindedness, mania, madness, extremism, intolerance, bigotry, bias, partiality, prejudice, narrow-mindedness, close-mindedness Some religious sects are characterized by virulent fanaticism