What is another word for last frontier?
Pronunciation: [lˈast fɹˈʌnti͡ə] (IPA) 
The term "last frontier" describes a place or region that represents unexplored, untamed or unconquered territory. Its synonyms include "final frontier" which connotes the edge of civilization beyond which lies uncharted territory. The phrase "ultimate boundary" is similar and refers to the furthest limit of human exploration and knowledge. Other synonyms include "wild west", used to describe the unknown and unsettled regions of the western United States, and "undiscovered country", a term used to describe a place that is beyond the reach of human knowledge or control. These synonyms capture the sense of mystery and exploration that defines the "last frontier" and reflect humanity's desire to push the boundaries of what is known and understood.
