by fair means or foul
Definitions
By any method possible, whether honest or dishonest.
Using any means necessary, regardless of whether they are ethical or legal.
Examples
The ambitious politician was determined to win the election by fair means or foul.
He was so desperate to secure the contract that he decided to get it by fair means or foul.
Synonyms
by any means necessary at any cost hook or by crook no matter the method by hook or by crook
Antonyms
by honest means fair and square playing by the rules scrupulously ethically