When it comes to finding antonyms for the phrase "more predominating," a few options come to mind. Firstly, "less predominant" could be a suitable antonym, denoting a reduction or decrease in the level of domination. Another possibility could be "equal" or "neutral," indicating a state of balance or absence of any one dominating factor. Alternatively, "subordinate" or "minor" could be used to describe a less influential or important factor compared to others. In summary, suitable antonyms for "more predominating" might include "less predominant," "equal," "neutral," "subordinate," or "minor.