The word yoyoed implies a back-and-forth movement, often with lack of stability or predictability. Opposites of yoyoed may include consistent, steady, or stable movements. Other antonyms may include assured, confident, or predictable. When we talk about the opposite of yoyoed, we're really discussing a state of equilibrium, one where things are constantly moving forward without any interrupting motions. Ultimately, the opposite of yoyoed would be a situation that is characterized by predictability and stability so that things would never be changing or in flux. In this way, antonyms for yoyoed are useful language tools for describing what something is not.