"Inconversant" is a relatively obscure term used to describe someone who lacks knowledge or familiarity with a certain subject matter. Some synonyms that could be used in place of "inconversant" include unfamiliar, unacquainted, unversed, ignorant, uninformed, unknowledgeable, inexperienced, and green. All of these words indicate a deficiency in knowledge or familiarity with a particular topic, making them effective substitutes for "inconversant" in various contexts. Whether you are looking for a way to avoid repetition in your writing or simply searching for a more commonly used word, these synonyms provide ample options for expressing the same idea.