This paper argues against Boydian synthetic moral naturalism by way of a critical examination at metasemantic issues. I first show that the Boydian metasemantics delivers determinate but wrong reference, building on an analysis by Schroeter and Schroeter. I then propose a diagnosis which says that the problem occurs due to an overly simple way of understanding externalist metasemantics, and that a proper understanding requires us to pay heed to the higher-level constraints set by the speakers’ deferring pattern. That in turn (...) is restricted by what I call reference defeaters, which are essentially some central beliefs held by the speakers and are so called because they have the power to defeat reference of a term to certain things. Applying the notion to moral discourse, I argue that the entrenched is/ought distinction held by the ordinary speakers defeats the reference of the moral predicates to natural properties, that is, synthetic moral naturalism is not true. (shrink)

There was a time when meta-ethical expressivism seemed to be the only game in town for meta-ethical non-representationalists. In recent years, though, meta-ethical inferentialism has emerged as a promising non-representationalist alternative. So far, however, inferentialists lack something that would really allow them to draw level with expressivists. This is an explanation for the distinctive difference between normative and descriptive vocabulary when it comes to disagreement—something expressivists can explain in terms of the difference between representational and desire-like states and which constitutes (...) one of the primary motivations for expressivism. This paper develops a novel and distinctive account for this difference on behalf of inferentialists, based on the different functions of these two vocabularies. Not only does this account help inferentialists, it also shows how non-representionalist accounts can capture the relevant disagreement phenomena without appealing to the sorts of desire-like states expressivists tend to appeal to. (shrink)