extremism extremeness • extremist · · · Info · Definitions · Characters · · extremism · · Text Latin · · Script 9 · · Length Definitions · · · (noun) any political theory favoring immoderate uncompromising policies. · · Noun Definition 1 Characters · · e latin small letter e U+0065 i latin small letter i U+0069 m latin small letter m U+006D r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 x latin small letter x U+0078