unsolvable
US /ʌnˈsɑːl.və.bəl/
UK /ʌnˈsɑːl.və.bəl/
1.
không thể giải quyết được
If a problem, difficulty, or mystery is unsolvable, it is not possible to find a solution to it or the cause of it:
:
•
Without further funds, this is an almost unsolvable problem.