If you say that something is preordained, you mean you believe it to be happening in the way that has been decided by a power such as God or fate. the belief that our actions are the unfolding of a preordained destiny. = predestined. if something is preordained, it is certain to happen in the future because God or fate has decided it
{s} decreed in advance, predestined; determined beforehand, fixed ahead of time; designated ahead of time, appointed in advance