[ev-uh-loo-shuh-nist or, esp. British, ee-vuh-]


a person who believes in or supports a theory of evolution, especially in biology.
a person who supports a policy of gradual growth or development rather than sudden change or expansion.

adjective Also ev·o·lu·tion·is·tic.

of or relating to evolution or evolutionists.
believing in or supporting a theory of evolution, especially in biology.

Origin of evolutionist

First recorded in 1855–60; evolution + -ist
Related formsev·o·lu·tion·ism, nounev·o·lu·tion·is·ti·cal·ly, adverban·ti·ev·o·lu·tion·ist, noun, adjectivean·ti·ev·o·lu·tion·is·tic, adjectivenon·ev·o·lu·tion·ist, nounpre·ev·o·lu·tion·ist, nounpro·ev·o·lu·tion·ist, adjective, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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British Dictionary definitions for evolutionist



a person who believes in a theory of evolution, esp Darwin's theory of the evolution of plant and animal species


of or relating to a theory of evolution
Derived Formsevolutionism, nounevolutionistic, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for evolutionist

1859, from evolution + -ist. Related: Evolutionism.

Online Etymology Dictionary, © 2010 Douglas Harper