What Is Moral Antirealism?

What Is Moral Antirealism? On this view, moral anti-realism is the denial of the thesis that moral properties—or facts, objects, relations, events, etc. (whatever categories one is willing to countenance)—exist objectively. What is moral realism and Antirealism? In the philosophy of ethics, moral anti-realism (or moral irrealism) is a meta-ethical doctrine that there are no