Throwing someone in to a tizzy might mean causing confusion or distress, but there are many ways to describe the opposite. One could bring clarity to a situation, put someone's mind at ease or simply calm them down. These antonyms indicate a sense of order and understanding, as opposed to the chaos of being thrown into a tizzy. Other words that might fit the bill include settle, reassure, comfort, and soothe. By using these terms instead of "throwing in to a tizzy," one can convey a sense of control rather than upheaval, bringing a sense of peace and stability to the situation at hand.