Capsulizing refers to the act of summarizing or condensing something into a capsule or a short form. Antonyms for the word 'capsulizing' would, therefore, be words that depict the opposite of summarizing, such as expanding, elaborating, detailing, and broadening. While capsulizing aims to reduce something to its key points, these antonyms indicate an effort to provide a thorough explanation or analysis of a given subject matter. When you are elaborating on something, you are providing a detailed account of the topic. In contrast, broadening indicates that one wants to extend one's view beyond the limited scope of the capsule summary.