Е›miertelny -
At its core, śmiertelny means "mortal" or "liable to die". It describes the human condition—the fact that we are all, as they say in Polish, śmiertelni (mortal beings).
Polish often uses śmiertelny to heighten the intensity of emotions or states of being. When something is śmiertelny , it isn't just serious; it’s absolute. Е›miertelny
A mortal enemy, implying a conflict that cannot be resolved. 3. Everyday Hyperbole: "Deadly" Tired At its core, śmiertelny means "mortal" or "liable to die"