Abstersive is an uncommon word that refers to something that is able to cleanse or clear away impurities. However, if you are looking for alternative words to use instead of abstersive, there are many options available. For instance, you can use the word cleansing, which denotes the act of disinfecting or washing away dirt. Alternatively, you can use scouring, which implies the action of rubbing or scrubbing hard in order to achieve a given result. Cleansing, scouring, and purifying are some of the most common synonyms for abstersive. They all describe actions that entail removing unwanted elements from a given surface or area.