unlikely

This word conveys a strong sense of skepticism or a low probability of occurrence. It sits between possible and impossible, suggesting that while an event is not strictly forbidden by logic or law, the evidence points toward it not happening. In social contexts, calling a person unlikely often describes someone who defies expectations or comes from an unexpected background, such as an unlikely hero. This adds a layer of irony or surprise to the description, contrasting a person's humble beginnings with their eventual success.