D defs.my
Entry 1 sense Webster, 1913

Extremist

/ĕk-strēm'-ĭst/ · Ex·trem·ist · IPA /ɪkˈstɹiːmɪst/
01 n. A supporter of extreme doctrines or practice; one who holds extreme opinions.
  1. 1.
    A supporter of extreme doctrines or practice; one who holds extreme opinions.