remorselessly

adverb
1
in a continuous way, and becoming worse as time goes on
بی‌رحمانه, بی‌وقفه, بی‌امان, به طور مداوم
synonym relentlessly
2
in a cruel and determined way that shows no regret for something wrong or bad you have done
بی‌رحمانه, سنگدلانه, بی‌وجدانانه, بدون پشیمانی
Troops and civilians alike were being remorselessly bombed.
synonym mercilessly