Prefixes indicating location or position:
* Intercontinental: Relating to or extending between continents.
* Transcontinental: Extending across a continent.
* Ultracontinental: Beyond the limits of a continent. (This is a bit more creative and less common)
Prefixes indicating size or scope:
* Macrocontinental: On a large, continental scale.
* Microcontinental: Relating to a small, continental fragment.
Prefixes indicating time or change:
* Precontinental: Existing before the formation of continents.
* Postcontinental: Existing after the formation of continents.
Prefixes indicating quality or characteristic:
* Pseudocontinental: Resembling or imitating a continental feature but not actually being one.
The most suitable word will depend on the specific context you need it for.