Added 9 October 2026 extremist /ɪkˈstɹiːmɪst/ noun Categories: PeopleRare Words noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about extremist at Wordnik → Where our words come from → A person who holds extreme views. adjective (used of opinions and actions) far beyond the norm. extremist political views Related Words: radicalultraimmoderateultranationalistradicalismfar-rightright-wingfundamentalistfundamentalismterroristhardlinemaximalist Back to today's word