relentless in Russian
relentless in Russian
безжа́лостный
Unrelenting or unyielding in severity.
беспоща́дный
Unrelenting or unyielding in severity.
непрекло́нный
Unrelenting or unyielding in severity.
неумоли́мый
Unrelenting or unyielding in severity.
неослабева́ющий
Unremitting, steady and persistent.
упо́рный
Unremitting, steady and persistent.