Chitchatting is a common word used to describe casual conversations or gossip. However, there are a variety of antonyms that can be used to describe different types of communication. For example, instead of chitchatting, one might engage in a serious discussion or debate. A silence could also be considered an antonym of chitchatting, indicating that no conversation is taking place. Another antonym could be simply listening or monologuing, where one person speaks at length but there is no back-and-forth exchange of ideas. Whatever the context, there are a variety of words that can be used to describe communication that is very different from chitchatting.