Antonyms for the word "make conversant" include "confuse," "muddle," and "obfuscate." These words suggest a lack of clarity or understanding in communication, indicating an inability to convey information effectively. Additionally, antonyms for "make conversant" could be words that describe a lack of interest or engagement, such as "disinterested," "unenthusiastic," or even "avoidant." Finally, antonyms for "make conversant" could be words that describe a lack of verbal skills or language fluency, such as "tongue-tied," "inept," or "inarticulate." Regardless of the specific antonym, the effect is a lack of successful communication, which is essential for building relationships and connecting with others.