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