The term "bottoms out" refers to reaching the lowest point or level of something, but there are several antonyms that can be used to convey a different meaning. A few antonyms for "bottoms out" would include peak, ascend, climb, rise, or increase. All of these words represent movement or upward progress rather than hitting a low point or plateau. When discussing financial markets, for example, rather than saying a stock "bottoms out," one could say it "peaks" or "rises." Similarly, instead of saying a person's mental health "bottoms out," the language could be shifted to "ascends" or "improves.