سرسختانهدیکشنری فارسی به انگلیسیdogged, doggedly, hard-bitten, hard-line, headstrong, intransigent, obdurately, pertinaciously, stubbornly, vigorous
بی رحمانهدیکشنری فارسی به انگلیسیbarbaric, brutally, cruelly, cutthroat, harsh, heartlessly, inhumanely, iniquitous, obdurately, pitilessly, relentlessly, remorseless, remorselessly, ruthlessly, savage, savagely, truculently