Abstract
In contemporary metaethics, functionalist theories of moral properties are dominantly naturalistic. This article, however, aims to develop a nonnaturalistic form of moral functionalism. Specifically, I propose a Holistic, Intuitional, and Second-order version of moral functionalism (call it 'HIS Moral Functionalism' for short). The major goal of this article is to show that HIS Moral Functionalism is more plausible than competing functionalist accounts. Moreover, I propose an epistemic formulation of moral naturalism/nonnaturalism, and then argue that HIS Moral Functionalism is a particular brand of moral nonnaturalism.