The phrase "making stick" commonly describes the process of something adhering to a surface or becoming attached to something else. Antonyms for "making stick" could include "loosening," "separating," "detaching," "unsticking," or "removing." These words imply the opposite action - instead of things becoming attached, they are becoming separated or removed from one another. Sometimes, the opposite of "making stick" can also mean preventing something from adhering or becoming attached in the first place, such as "repelling," "blocking," or "resisting." The context and usage of these antonyms can vary depending on the situation, but they all provide a useful counterpoint to "making stick.