When it comes to finding antonyms for the phrase "bandies with," it largely depends on the context in which the phrase is used. However, some possible antonyms could include avoiding or ignoring, which would suggest a lack of engagement or interaction. Alternately, other antonyms could include arguing or fighting, which implies heated conflict rather than friendly banter. Ultimately, the opposite of "bandies with" will vary depending on the tone and intent of the conversation; whether it is friendly or combative, engaging or disinterested.