UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/fəˈnætɪkəl/US:USA pronunciation: respellingUSA pronunciation: respelling(fə nati kəl)

WordReference Random House Unabridged Dictionary of American English © 2020
fa•nat•i•cal  (fə nati kəl),USA pronunciation adj. 
  1. motivated or characterized by an extreme, uncritical enthusiasm or zeal, as in religion or politics.
Also,  fanatic.  fa•nati•cal•ly, adv. 
fa•nati•cal•ness, n. 
  • fanatic + -al1 1540–50
    enthusiastic, zealous, frenzied, rabid. See  intolerant, radical. 

Collins Concise English Dictionary © HarperCollins Publishers::
fanatical /fəˈnætɪkəl/ adj
  1. surpassing what is normal or accepted in enthusiasm for or belief in something; excessively or unusually dedicated or devoted

faˈnatically adv
'fanatical' also found in these entries:

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