It is obviously possible to judge that something is not beautiful, or even to judge that it is ugly. However, as argued in this paper, the theory of judgments of free beauty developed in Kant's Critique of Judgement is incompatible with the existence of such negative judgments of taste, despite Kant's acknowledgement of their existence. That his theory leaves no room for judgments of ugliness is shown in this paper to follow straightforwardly from basic elements of Kant's philosophy of mind together with two conditions which Kant holds as necessary for all judgments of taste about beauty, whether affirmative or negative — first, that such judgments are made independently of objective concepts, and second, that they are universally valid.