substitutability
/ˌsʌbstɪˌtutəˈbɪləti/
noun
- The quality or ability of one thing to be used in place of another.
- Economists study the substitutability of different energy sources like coal and natural gas.
- The substitutability of butter and margarine makes it easy to adjust recipes.
- In team sports, the substitutability of players allows coaches to rest tired athletes.
Synonyms