The meaning of RADICAL is of, relating to, or proceeding from a root. How to use radical in a sentence.

RADICAL definition: 1. believing or expressing the belief that there should be great or extreme social or political…. Learn more.

If something is considered extremist or very different from anything that has come before it, call it radical. The noun, radical, comes from the Latin radix "root," and in fact, radical and root are …

a person holding radical views, esp. one favoring fundamental social or economic change

Relating to or advocating fundamental or revolutionary changes in current practices, conditions, or institutions: radical politics; a radical political theorist.

Nov 2, 2025 · radical (plural radicals) (historical, 19th-century Britain, politics) A member of the most progressive wing of the Liberal Party; someone favouring social reform (but generally …

The indicated root of a quantity or quantities, shown by an expression written under the radical sign.

An individual atom or element as a constituent of a compound was formerly termed a simple radical, as distinct from a group or compound radical. The use of the word for single atoms is …

Radical definition: of or going to the root or origin; fundamental.. See examples of RADICAL used in a sentence.

thoroughgoing, complete, or extreme: a radical change in policy. Government favoring drastic or extreme political, economic, or social reforms: radical politics.