In a science fiction future, people naturally live forever, although accidents and murders are still possible, even if much less common as there's a lot to lose.
Suppose a future person looks at our time, when death was commonplace, when people died left, right an centre, when everyone has dead relatives (e.g. grandparents, those lost to cancer or car accidents), when everyone knew their death was inevitable.
What would future people call our death? Common? Casual?