Scraping off is a term used to describe the act of removing or taking away something from a surface through scraping, rubbing, or peeling. Antonyms for scraping off could include the terms adding, attaching, bonding, or securing, all of which relate to the opposite action of affixing or sticking something onto a surface. Other possible antonyms could include leaving on, keeping intact, preserving, or protecting. When we think of the opposite action to scraping off, it is ultimately about leaving something in place and not tampering with it or removing it in any way.