Definition: Apocalyptic refers to a book or a genre that describes future events so vividly, such as those predicted by Daniel in Revelation, it's often used to describe visions, prophecies, etc., but doesn't necessarily predict reality. Definition: The concept of "apocalyptic" is about the prediction of future events with great precision and detail, which can occur after a particular event that has been described in biblical texts or elsewhere. Apocalypse in literature refers to the vision or experience of a supernatural event so vividly depicted that it appears as if it were actually occurring. The term is often used metaphorically to describe visions seen by people who believe in prophecies and have experienced a series of events, which can be considered similar to the visions of Daniel. In summary, apocalyptic refers to a book or genre that describes future events so vividly, including the predictions of biblical texts or other sources. The term is often used metaphorically in literature to describe visions seen by people who believe they have experienced something supernatural and are seeing it come true.