Meaning of final frontier in English:
final frontier
noun
1A part of a country, region, etc. that is the last to be settled, explored, or developed.
- ‘ the final frontier was Antarctica’
- 1.1The extreme limit of understanding or achievement in a particular area.
- ‘the artist stands on the final frontier of the hip-hop universe’
Origin
Mid 19th century popularized by its use in the opening of the US television series Star Trek.
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