fideism
Concise Oxford English Dictionary © 2008 Oxford University Press:
fideism /ˈfʌɪdɪɪz(ə)m/
▶noun the doctrine that knowledge depends on faith or revelation.
– derivatives
fideist noun,
fideistic adjective.
fideist noun,
fideistic adjective.
'fideism' also found in these Oxford entries:

