Most unconversant means unfamiliar, unacquainted, or inexperienced with a particular subject or topic. Antonyms for the word "most unconversant" would be words that suggest a higher level of knowledge or familiarity with the same subject. Such as - experienced, knowledgeable, expert, skilled, or proficient. If you are someone who is most unconversant about something, it implies that you lack the necessary knowledge, expertise, or experience to engage in an informed discussion or decision-making process. By contrast, if you are knowledgeable or experienced in a particular field, you are likely to be confident and capable of making sound judgments and offering insightful observations about the same subject.