See more synonyms for extremist on Thesaurus.com
  1. belonging or pertaining to extremists.

Origin of extremist

First recorded in 1840–50; extreme + -ist
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for extremist

Historical Examples of extremist

  • The Extremist at once pressed the argument to its utmost consequences.

    India, Old and New

    Sir Valentine Chirol

  • Extremist though she be, woman is always consistent in her extremes; hence her power for good and for evil.

    Greek Women

    Mitchell Carroll

  • The latest telegrams from Berlin state that the Spartacus (Extremist) leaders are in extremis.

  • Hanged if I can imagine a white-haired, soft-spoken fellow like that as a dangerous Anarchist or Extremist.

    A Sub and a Submarine

    Percy F. Westerman

  • The first room they entered was that in which Fordyce had interviewed the Extremist official.

    A Sub and a Submarine

    Percy F. Westerman

British Dictionary definitions for extremist


  1. a person who favours or resorts to immoderate, uncompromising, or fanatical methods or behaviour, esp in being politically radical
  1. of, relating to, or characterized by immoderate or excessive actions, opinions, etc
Derived Formsextremism, noun
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 extremist

1840, from extreme + -ist.

Online Etymology Dictionary, © 2010 Douglas Harper