Foundational and Radical

Radical is a synonym for foundational in basic topic. In some cases you can use "Radical" instead the word "Foundational" as an adjective or a noun, when it comes to topics like bottom, surface, lowest.

Radical noun - A person who favors rapid and sweeping changes especially in laws and methods of government.

Foundational is a synonym for radical in surface topic. You can use "Foundational" instead the word "Radical" as an adjective or a noun, if it concerns topics such as fundamental, basic.

Nearby Words: radically, radicalism, radicalize, radicalise, radicalised