RussianживучийTenacious of life, hard to kill.

Lol feel free to correct me if I'm wrong, but this seems like a word that doesn't really have a direct correlation at least in English and would probably take an awkward phrase like "tenacious of life" to explain. I usually use it when playing a video game and there's a hard boss who doesn't go down easily: "Ну и живучий уродец" - "Damn this fucker is hard to kill"