The antonyms for the phrase "exchanges views on" would include actions that prevent communication and conversation, such as ignoring, avoiding, or disregarding differing opinions altogether. Other antonyms could be to argue, fight, or belittle opposing viewpoints, as these actions work against finding common ground and productive discussions. Additionally, antonyms for "exchanges views on" could include one person dominating the conversation or refusing to listen to others, thereby shutting down open and respectful dialogue. All of these actions can hinder the exchange of opinions and ideas, and make it difficult to come to a mutual understanding or agreement.