'Extinguishable' in the Bible

Prophesy against the forest of the Negev, "Listen to this message from the LORD. This is what the Lord GOD says: "Look out! I'm about to ignite a fire and set it against you. It will devour every tree whether green or dry that lives in you. This powerful flame will not be extinguishable, and the entire surface from south to north will be scorched by it.