extremest

As a noun terms

is .

As an adjective extremest is

(extreme).

As adjectives the difference between extremest and radical

is that extremest is superlative of extreme while radical is favoring fundamental change, or change at the root cause of a matter.

As a noun radical is

a member of the most progressive wing of the Liberal Party; someone favouring social reform (but generally stopping short of socialism).

As adjectives the difference between extremest and extremist

is that extremest is superlative of extreme while extremist is holding extreme views, especially on a political subject.

As a noun extremist is

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

As adjectives the difference between extreamest and extremest

is that extreamest is (extream) while extremest is (extreme).

As a noun extremes

is plural of lang=en.

As an adjective extremest is

superlative of extreme.