A bitter remark intended to wound the feelings is a sarcasm. A sarcasm is a form of irony in which someone says something but means the opposite, often to mock or ridicule someone or something. It is a kind of bitter or cutting remark that is intended to hurt or insult someone, and is often used to express contempt or ridicule. Sarcasm is often delivered with a tone of voice that is exaggerated or dripping with sarcasm, making it clear that the speaker does not mean what they are saying at face value.