General-term rigidity is meaning constancy

Abstract It is often thought that some general terms or kind terms, in particular natural are rigid designators, and a properly extended notion of singular-term rigidity can help explain the behaviour such terms. In this article, I argue only legitimate general-term trivial one identify crucial asymmetries between posteriori necessary truths involving names If we pay attention to these asymmetries, it becomes clear attempts draw non-trivial rigid/non-rigid distinction for bound fail offer explanations expected. As opposed singular what interesting about even modal contexts, cannot be accounted by distinctions like rigidity/non-rigidity but must rather track non-modal features.