The phrase "didst a uturn" means to make a very sudden and abrupt change of direction. Some common synonyms for this phrase include "turned sharply," "made a sudden U-turn," "swung around," and "took a quick detour." Additionally, one could say "reversed course" or "changed directions suddenly." There are many ways to express the idea of turning sharply or completely reversing direction, depending on the context. Using synonyms for "didst a uturn" can help add variety and nuance to one's language, making their writing or speech more engaging.