extensible
adjectiveUK /ɪkˈstɛnsəbl/
US /ɪkˈstɛnsəbl/
Something that can be made longer or bigger by adding more to it.
The tent has an extensible pole so you can make it taller.
OTHER MEANINGS
2. Able to be extended or enlarged in scope or size.
The software is extensible, so developers can add new features.
3. Capable of being stretched out physically.
The extensible ladder reached the top of the roof.
4. Able to have extra parts or pieces added on.
This extensible table can seat more guests when needed.