Impendence refers to a situation where something is about to happen or occur. Some synonyms for impendence include imminent, impending, forthcoming, approaching, looming, and on the horizon. These words all convey a sense of urgency and a feeling that something is about to happen soon. They are commonly used in the context of describing a potential event or situation that may have consequences or require action. Other similar words include impending disaster, impending crisis, imminent threat, and looming danger. These words are often used in news headlines or by experts to describe impending events that require attention or action.