While Hannah Arendt claimed to have abandoned her early conception of radical evil for a banal one, recent scholarship has questioned that conclusion. This article contributes to the debate by arguing that her conceptual alteration is best understood by engaging with the structure of norms subtending each conception. From this, I develop a compatibilist understanding that accounts for Arendt’s movement from a radical to a banal conception of evil, by claiming that it was because she came to reject the foundationalism (...) of the former for the non-foundationalism of the latter, where norms are located from an ineffable ‘source’ diffusely spread throughout the society. While it might be thought that this means that such norms are all-encompassing to the extent that they determine individual action, I appeal to her notions of plurality, action, and natality, to argue that she defends the weaker claim that moral norms merely condition action. This demonstrates how Arendt’s conceptions of evil complement one another, highlights her understanding of the action–norms relation, and identifies that there is built into Arendt’s conception(s) of evil a resource for resisting totalitarian domination. (shrink)