Predicament: A difficult, unpleasant situation; The boy thought studying for a test is a predicament.

Preordained: to decide or determine beforehand; The teacher must preordain on whether her class will go on a field trip or not.

Unalterable: Not capable/possible to be changed; The laws of states were unalterable.

Expedition: A journey with a definite objective; The sailors’ expedition to find treasure lasted for months.

Frigid: very cold weather; The weather was so frigid no one dared to go outside.