The word "dilate" means to expand or widen. If you are looking for synonyms for the phrase "more dilate," here are a few options: intensify, grow, amplify, enlarge, extend, augment, widen, broaden, stretch, increase, balloon, swell, multiply, escalate, magnify, and open up.
Each of these synonyms carries a slightly different connotation and would be appropriate in different contexts. For example, "intensify" might be used when referring to emotions or sensations, while "balloon" might be used in the context of a sudden and rapid expansion. Whatever the context, there are plenty of synonyms available to help you describe the process of dilation in more depth and detail.