theoretically
US /ˌθiː.əˈret̬.ə.kəl.i/
UK /ˌθiː.əˈret̬.ə.kəl.i/

1.
in theory; in an ideal or hypothetical way, rather than in practice
:
•
Theoretically, this plan should work perfectly.
•
You could theoretically finish the project by tomorrow, but it would be very difficult.