The phrase "dost part" means "mostly" or "for the most part." Antonyms for this phrase include "partially," "infrequently," "rarely," "occasionally," and "sporadically." Using antonyms can add variety and complexity to language by offering alternative perspectives and shades of meaning. In writing, it's important to choose the appropriate antonym for the intended tone and style of the piece. By incorporating antonyms, writers can create a fuller picture of their ideas and better communicate their intended message.