fanaticism
noun
[ fəˈnatɪsɪz(ə)m ]
• the quality of being fanatical.
• "the dangers of religious fanaticism"
Similar:
zealotry,
zeal,
extremism,
militancy,
sectarianism,
fundamentalism,
bigotry,
dogmatism,
chauvinism,
radicalism,
immoderation,
obsessiveness,
over-enthusiasm,
addiction,
fixation,
madness,
monomania,
passion,
infatuation,
enthusiasm,
dedication,
devotion,
single-mindedness,
fandom,
fervency,
ardency,
passionateness,