When it comes to finding synonyms for the word "most smacking," it's important to consider your intended meaning and context. If you're looking for a word that conveys a strong impact or force, options like "powerful," "forceful," or "jarring" might work. Alternatively, if you're referring to food or flavors, synonyms like "delicious," "savory," or "flavorful" could fit the bill. Other possibilities might include "tantalizing," "intense," or "potent" depending on the situation. With a little careful consideration, you can easily find the right synonym to help you convey precisely what you mean.