What term describes something that is about to happen?

The term "imminent" specifically refers to something that is about to occur or is impending. It indicates that an event is nearing and will likely happen soon, often with a sense of urgency or importance. For example, when a storm is imminent, it suggests that the storm is expected to arrive shortly and should be taken seriously.

In contrast, "immediate" denotes something that occurs without delay or is instantaneous, which does not capture the nuance of something that is impending. "Impede" means to hinder or obstruct progress or movement, and "incriminate" involves making someone appear guilty of a crime. These terms do not relate to the notion of something that is about to happen. Thus, "imminent" is the most accurate choice for describing an event that is on the verge of occurring.