Looking for a smart adjective
Solution 1:
Provisional
for the present time but likely to change:
These dates are only provisional.
[Cambridge Dictionary]
Solution 2:
The closest is probably makeshift
"As an adjective, 1680s, "of the nature of a temporary expedient," which led to the noun sense of "that with which one meets a present need or turn, a temporary substitute" (by 1802)."