Junctural is a word that's used to describe a point or moment when important decisions must be made. In other words, it's a transitional or pivotal moment. There are many synonyms for junctural, including critical, decisive, crucial, pivotal, significant, momentous, paramount, and essential. When using any of these words, it's important to keep the context in mind. For instance, the word critical implies that something could fail if a decision isn't made; significant means the decision will have a major impact, while essential suggests that the decision is necessary for things to proceed. Whatever the synonym, it's essential to choose the right word to convey the importance of the moment.