If something is preordained, it is certain to happen because God or fate has already decided it — not because a person made a plan, and not because it is merely likely. The ending was written before the story started. People use it for the big shapes of a life: a marriage that “had to be,” a death, a war, a path someone was always going to walk. It is a rather formal, church-and-book word. In ordinary talk people more often say it was meant to be, or it was fate. You will meet it in stories, sermons, and careful essays more than in the market. Though actually, speakers get loose with it. They call a traffic jam preordained when they only mean it felt inevitable, with no God in the room. And they often say it after the thing has already happened, looking back — which is a feeling, not proof. In some church teaching the word is tighter: God chose, from the beginning, what would happen. The tidy dictionary line names God or fate; real talk often just means this could not have gone another way.

命中注定的。不是行事曆上「預定」的那個預定。