There are several synonyms for the phrase "more hundredproof," which means something is extremely potent or intense. These synonyms include "high-proof," "full-strength," "overproof," "intense," "powerful," "potent," "strong," "robust," "forceful," and "vigorous." These words all convey a sense of intensity and power, and are often used to describe potent alcoholic beverages like vodka or whiskey. They can also be used to describe powerful emotions or experiences, such as an intense workout or an emotionally charged conversation. So if you're looking for a synonym for "more hundredproof," these words offer plenty of options.