It is not unusual to find the content of an epistemic agent’s utterance unwanted and immediately reject such an utterance because it elicits a repulsive reaction in us. What could explain this sort of reaction to a speaker’s utterance? In this paper, I propose an “epistemic disgust” concept to explain this reaction to a speaker’s utterance. Epistemic disgust refers to a phenomenon whereby an epistemic agent is repulsed by a speaker’s utterance either due to the speaker’s personality or the content (...) of the speaker’s utterance, thus causing the agent to reject the speaker’s utterance from contributing to her epistemic system. (shrink)