Topping off refers to the act of completing or finishing something. Antonyms for the phrase "topping off" which means finishing something include halting, suspending, leave hanging, or delaying, which are all words that describe not finishing something. Other antonyms could also include abandoning, quitting, relinquishing, or withdrawing. Each of these words represents different ways of not fully completing a task or project. When one is unable to follow through to completion or postpones to finish, then the action is referred to by the antonyms above. It is important to recognize these opposite words in order to appreciate the vital role they play as they keep us informed and help us make the right decisions about completing tasks.