fundamentalism

fundamental +‎ -ism.

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fundamentalism (countable and uncountable, plural fundamentalisms)

1. (religion) The tendency to reduce a religion to its most fundamental tenets, based on strict interpretation of core texts.

   Synonym: bibliolatry

2. (by extension) A rigid conformity to any set of basic tenets.
   • 2009, Thomas A. Regelski, J. Terry Gates, Music Education for Changing Times: Guiding Visions for Practice

     Recent books by philosopher Roger Scruton (1999, 2000) and music educator Robert Walker (2007) may be interpreted as a last desperate gasp of this form of musical fundamentalism or neoconservativism—the kind that tells the masses what is "good for them" on the grounds that they lack adequate bases for judgments on their own […]

3. (finance) The belief that fundamental financial quantities are the best predictor of the price of a financial instrument.

• fundamentalist

• (religion): orthodoxy
• (finance): technical analysis, value investing

• fundamentalism at OneLook Dictionary Search
• fundamentalism in Keywords for Today: A 21st Century Vocabulary, edited by The Keywords Project, Colin MacCabe, Holly Yanacek, 2018.
• fundamentalism in The Century Dictionary, New York, N.Y.: The Century Co., 1911

From French fondamentalisme.

fundamentalism n (uncountable)

1. (religion, philosophy) fundamentalism