"Go from bad to worse" is an idiom which implies that a situation is gradually deteriorating. In such instances, there are several alternative phrases that can be used to convey the same meaning. For instance, "downward spiral," "vicious cycle," "turn for the worse," "plummeting," and "sinking deeper" are synonyms that depict a situation getting increasingly worse. "Degenerating," "deteriorating," "dwindling," and "declining rapidly" are also expressions that can be used in the place of "going from bad to worse." In conclusion, there are several ways to depict a situation that is escalating in negativity, and the choice of phrase will depend on the context and the severity of the situation.