If you're looking for synonyms for the phrase "did about-face," you might consider using terms like "made a complete turnaround," "changed direction," "shifted gears," or "reversed course." These phrases can be used in a variety of contexts to describe someone who has changed their approach to a particular situation or who has altered their perspective on a certain issue. Whether you're writing an academic paper, a business report, or a personal essay, it's important to choose the right words to express your ideas clearly and effectively, and using synonyms can help you achieve that goal.