Moral relativism is an important topic in metaethics. It is also widely discussed outside philosophy (for example, by political and religious leaders), and it is controversial among philosophers and nonphilosophers alike. This is perhaps not surprising in view of recent evidence that people's intuitions about moral relativism vary widely. Though many philosophers are quite critical of moral relativism, there are several contemporary philosophers who defend forms of it. These include such prominent figures as Gilbert Harman, Jesse J. Prinz, J. David (...) Velleman and David B. Wong. The term ‘moral relativism’ is understood in a variety of ways. Most often it is associated with an empirical thesis that there are deep and widespread moral disagreements and a metaethical thesis that the truth or justification of moral judgments is not absolute, but relative to the moral standard of some person or group of persons. Sometimes ‘moral relativism’ is connected with a normative position about how we ought to think about or act towards those with whom we morally disagree, most commonly that we should tolerate them. (shrink)

A number of arguments against moral relativism are based on the reality of intracultural conflict or the related possibility of sliding down a slippery slope and out the door of morality altogether. The first batch of arguments draws upon the evident fact that cultures are not unitary or homogenous but contain subgroups at odds with each other. The second batch is based on the claim that if moral truth is relativized to a culture, consistency demands that it eventually be relativized (...) to the individual, and with that comes the end of morality. In this paper, (A) moral relativism is first defined, clarified, and defended—these preliminaries being necessary, given what follows—and (B) the common but infrequently discussed arguments mentioned above are distinguished, exposed, explained, evaluated, and ultimately rejected. (shrink)