Abstract

This paper examines implicaturist hybrid theories by examining how closely attitude expression by moral utterances fits with the varieties of implicature (conventional, particular conversational, generalized conversational) using five standard criteria for implicature: indeterminacy (§3), reinforceability (§4), non-detachability (§5), cancellability (§6), and calculability (§7). I argue (1) that conventional implicature is a clear non-starter as a model of attitude expression by moral utterances (2) that generalised conversational implicature yields the most plausible implicaturist hybrid but (3) that a non-implicaturist, and non-hybrid, alternative might in fact be superior.