the lesser of two evils
US /ðə ˈlesər əv tuː ˈiːvəlz/
UK /ðə ˈlesər əv tuː ˈiːvəlz/

1.
the less unpleasant of two unpleasant choices
:
•
Choosing to work overtime was the lesser of two evils compared to missing the deadline.
•
Sometimes you have to choose the lesser of two evils to move forward.