Delivered talk can have several antonyms depending on the context. One of the common antonyms is "listened." This term means that instead of giving a speech or lecture, someone is listening to what someone else is saying. Another antonym could be "kept quiet" or "silence." In this scenario, the opposite of delivered talk is remaining silent or not speaking at all. Other antonyms could be "ignored," "disregarded," or "neglected," which all suggest that no communication occurred between the speaker and the audience. Ultimately, the antonyms for delivered talk will depend on the situation and the desired outcome.