The antonyms for the phrase "retraced one's steps" are many, depending on the context. Instead of retracing one's steps, one can choose to forge ahead or move forward, meaning to continue on the path already taken or explore new avenues altogether. Alternatively, one can abandon the past and blaze a new trail or chart a new course, signifying a complete break from the previous course of action. One can also choose to pivot, indicating a shift in direction, or detour or diverge, indicating movement away from the original path, albeit temporarily. Ultimately, the antonyms for "retracing one's steps" suggest a desire to move forward, break free and explore new possibilities.