When it comes to finding synonyms for the phrase "not by much," there are a plethora of options available. Some perfect alternatives include "slightly," "marginally," "a tad," "barely," "just a little," and "scarcely." Other options could be "minutely," "modestly," "negligibly," or "infinitesimally." It all depends on the context and tone of the statement. Whether you're describing a close victory or a near miss, these synonyms can help you convey the subtleties of your intended message. Choosing the right synonym can make all the difference, so don't settle for the first definition that comes to mind!