Capsulize means to summarize or condense into a concise form. Its antonyms are expand, elaborate, detail, and amplify. Expand means to make something larger or more extensive, elaborate means to add more detail, information or complexity to something, detail means to describe something thoroughly, and amplify means to increase the volume or intensity of something. While capsulizing can be useful to give a quick overview or make information easily accessible, expanding on a topic can provide more depth and insight. Using the right antonym for capsulize depends on the context and purpose of the communication.