Anti-foundationalism (also called nonfoundationalism) is, as the name implies, a term applied to any philosophy which rejects a foundationalist approach, i.e. an anti-foundationalist is one who does not believe that there is some fundamental belief or principle which is the basic ground or foundation of inquiry and knowledge.

Anti-foundationalism (also called nonfoundationalism) is, as the name implies, a term applied to any philosophy which rejects a foundationalist approach, i.e. an anti-foundationalist is one who does not believe that there is some fundamental belief or principle which is the basic ground or foundation of inquiry and knowledge.