The word "be-fouling" refers to the act of making something dirty or polluted. The opposite of be-fouling is "cleansing", which means to remove dirt or impurities from something. The antonym of be-fouling is also "purifying", which means to make something pure or clean. Other antonyms of be-fouling include "sanitizing", "cleaning", "sterilizing", "disinfecting", "decontaminating", and "washing". These words describe the process of making something free from contaminants, bacteria, or pollutants. Using antonyms of be-fouling gives a positive connotation to an action that removes dirt, germs, and other unwanted elements, making something healthy and hygienic.