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[fee-dey-iz-uh m, fahy-dee-] /ˈfi deɪˌɪz əm, ˈfaɪ di-/
exclusive reliance in religious matters upon faith, with consequent rejection of appeals to science or philosophy.
1880-85; < Latin fide- stem of fidēs faith + -ism; probably first coined in French (fidéisme)
Related forms
fideist, noun
fideistic, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for fideistic


the theological doctrine that religious truth is a matter of faith and cannot be established by reason Compare natural theology
Derived Forms
fideist, noun
fideistic, adjective
Word Origin
C19: from Latin fidēs faith
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for fideistic



1885, from Latin fides "faith" (see faith) + -ism.

Online Etymology Dictionary, © 2010 Douglas Harper
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Encyclopedia Article for fideistic


a philosophical view extolling theological faith by making it the ultimate criterion of truth and minimizing the power of reason to know religious truths. Strict fideists assign no place to reason in discovering or understanding fundamental tenets of religion. For them blind faith is supreme as the way to certitude and salvation. They defend such faith on various grounds-e.g., mystical experience, revelation, subjective human need, and common sense. A nonrational attitude so pervades their thinking that some assert that the true object of faith is the absurd, the nonrational, the impossible, or that which directly conflicts with reason. Such a position was approached in the philosophies of the 2nd-century North African theologian Tertullian, the medieval English scholar William of Ockham, the 17th-century French philosopher Pierre Bayle, and more recently in the works of the 18th-century German philosopher Johann Georg Hamann and the 19th-century Danish philosopher Soren Kierkegaard. This modern attitude is often motivated by man's apparent inability to find rational solutions for the world's ills.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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