Which preposition to use with relentless
" "Was that fair, Solon, to pit a sleuth as relentless as Billy against poor Potts?" "All's fair in love and war.
She was relentless in her scorn for his meannesses and follies, and, though he did not always heed her counsels, he proved their justness by finding his own course wrong.
It was famous for a temple erected in honor of Kali, the fearful wife of the god Siva, the most cruel, vindictive and relentless of all the heathen deities.
In a few hours we ourselves should be beyond the pale, among those human wolves who were so much more relentless than any beasts of the field.
Relentless to others this man might be, but not even his dearest enemy could accuse him of sparing himself.
We in America are familiar with this type which is represented by our unscrupulous captains of industry or political bossesenergetic, physically strong, shrewd, relentless toward all who threaten to thwart their plans, skilful in organization, not troubled about the rightness of their methods, provided they escape the toils of the law, able to command men and successfully to carry through large policies.