extremist

/ษ›kหˆstษนiหmษชst/

IPA: /EH0 K S T R IY1 M IH0 S T/

noun
  1. 1

    A person who holds extreme views, especially one who advocates such views; a radical or fanatic.

adjective
  1. 1

    Holding extreme views, especially on a political subject.

  2. 2

    Of or relating to extremism.

Source: https://en.wiktionary.org/wiki/extremist