inescapable
Impossible to avoid or get away from.
Inescapable means impossible to avoid or get away from. When something is inescapable, you're going to face it no matter what you do or where you go.
Some facts are inescapable: everyone gets older, objects fall down instead of up, and winter follows autumn. These things happen whether we like them or not. In stories, a character might face an inescapable fate, meaning events will unfold a certain way no matter how hard they try to prevent it. Greek myths often featured this idea, where heroes learned that some destinies were inescapable, no matter how clever their plans.
The word can describe physical situations too. If you're hiking and reach a cliff on one side and a raging river on the other, you're in an inescapable position. You might describe a very loud sound as inescapable when you can hear it everywhere, or an inescapable smell that fills every room.