stop at nothing
US /stɑp æt ˈnʌθɪŋ/
UK /stɑp æt ˈnʌθɪŋ/
1.
to be willing to do anything to achieve a goal, even if it involves illegal or immoral actions
:
•
He would stop at nothing to get what he wanted, even if it meant hurting others.
•
The company was accused of stopping at nothing to eliminate its competitors.