Definition, Meaning & Synonyms

final frontier

Phrase
/ˈfaɪnəl ˈfrʌnˌtɪr/
Definition
The final frontier refers to the unexplored or unknown territory, particularly in the context of space or a challenge that has yet to be tackled.
Examples
  • Many scientists consider Mars to be the final frontier for human space exploration.
  • In technology, the final frontier is artificial intelligence.
  • For many adventurers, the final frontier is the depths of the ocean.
Meaning
It signifies an ultimate boundary or the last area that remains to be discovered or understood.
Synonyms
  • unknown territory
  • uncharted territory
  • ultimate boundary