As nouns the difference between extremist and militant
is that extremist
is extremist while militant
is (obsolete) a soldier, a combatant.
As an adjective militant is
fighting or disposed to fight; belligerent, warlike.
a person who holds extreme views, especially one who advocates such views; a radical or fanatic
holding extreme views, especially on a political subject
of, or relating to extremism
Fighting or disposed to fight; belligerent, warlike.
* 2012 , (Christopher Clark), The Sleepwalkers , Penguin 2013, p. 394:
Aggressively supporting of a political or social cause; adamant, combative.
- The upper tiers of the foreign ministry were quick to embrace a militant policy.
(obsolete) A soldier, a combatant.
An entrenched or aggressive adherent to a particular cause, now especially a member of a particular ideological faction.
* 2008', '' , Wikinews:
Specifically, someone who supports the Trotskyite political view expressed in the newspaper Militant , or who engages in aggressive left-wing politics.
- Officials in Pakistan have confirmed that at least 250 schoolchildren between 12 and 18 years old and several teachers were taken hostage by at least seven militants inside a high school in Domail.
* Militant Tendency