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English definition of “fundamentalism”

fundamentalism

noun [U]  /ˌfʌn·dəˈmen·təlˌɪz·əm/ us  
the belief that the traditional principles of a religion or set of beliefs should be maintained
fundamentalist
noun [C]  /ˌfʌn·dəˈmen·təl·ɪst/ us  
She is religious but not a fundamentalist.
fundamentalist
adjective  /ˌfʌn·dəˈmen·təl·ɪst/ us  
fundamentalist groups
(Definition of fundamentalism from the Cambridge Academic Content Dictionary © Cambridge University Press)
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