theoretical
🇺🇸
/ˌθiːəˈretɪkl/
🇬🇧
/ˌθɪəˈretɪkl/
based on ideas and thinking, not on real tests or practice
The first year gives students a strong theoretical foundation for later study.
possible but not likely to happen or be true
There is a theoretical chance that it could work, but it's very unlikely.