条件・譲歩N1
〜ないまでも
even if not... (at least)...
Structure
V-ない形 + までも
Explanation
V-nai + までも: even if not reaching the first clause's degree, at least...
Examples
満点でないまでも、良い点数を取りたい。
Even if I can't get full marks, I want a good score.
毎日でないまでも、週に一度は運動したい。
Even if not every day, I want to exercise once a week.
Note
The main clause is usually a desire or obligation: even if not X, at least Y.