The word "conversantly" means being knowledgeable or well-informed about a particular topic or subject matter. Some synonyms for this word include proficient, skilled, expert, knowledgeable, and well-versed. Other related words that convey a similar meaning include conversant, acquainted, familiar, cognizant, and aware. These words indicate a level of competence and understanding that come from extensive experience or study of a particular field or subject. Whether you are discussing an individual's expertise at work or their knowledge of a particular hobby or interest, these words are all excellent ways to describe someone who is truly "conversantly" with their subject matter.