evolutionist

From evolution + -ist.

evolutionist (plural evolutionists)

1. A proponent or supporter of evolutionism.

   Antonym: antievolutionist

   Coordinate term: creationist

   • 2002 April, Steve Jacoby, “Designer Creation”, in Amanda Boyd, editor, Cincinnati Magazine, volume 35, number 7, →ISSN, page 18:

     Ironically, the argument used today by Roadruck and other designists—that their teachings should receive equal time in schools—mirrors the one employed by evolutionists some 75 years ago.

2. (by extension) Someone who believes in the capacity of people to change.
   • 1924, Herbert Weir Smyth, “IV. Prometheus”, in Aeschylean Tragedy, page 120:

     Aeschylus is in fact an evolutionist as regards both gods and man.

Current use is mainly in historical contexts or by creationists.