When it comes to finding solutions or making decisions, there are times when we need to resort to the last option available. But what if the word "most last-resort" seems too repetitive and you need alternative terms to use? One option is "ultimate fallback", which means the ultimate choice when all other options have been exhausted. Another synonym is "final recourse", which refers to the last option that is available. "Final straw" can also be used to describe the last resort when a situation becomes intolerable. "Last-ditch" is another phrase that suggests trying something as a final attempt, while "extreme measure" is a term that conveys the sense of taking drastic action when there are no other options left.