Semantic Regularity and the Liar Paradox ---------------------------------------- I argue that the Liar paradox forces us to abandon the principle of Semantic Regularity, which says that there are perfectly reliable, principled relationships between our behaviour, mental states and physical environment on the one hand, and what we mean by our utterances on the other hand. Relinquishing Semantic Regularity opens the way to a solution to the Liar which is one hundred percent classical, and which does not generate a strengthened Liar paradox or revenge problem; it also yields solutions to semantic indeterminacy arguments such as those of Quine, Davidson, Putnam and Kripkenstein, to the problem of empty names, and to a recalcitrant problem in the literature on vagueness, the problem of false precision.