They are merciless and have no emotions.
He was beaten up brutally by his seniors in the name of ragging and the merciless beating resulted in his death.
I was beaten up mercilessly for over two hours until I became unconscious.
Nature’s fury has been unprecedented and merciless.
Why are you so merciless and rude?
I am appalled at the merciless felling of trees, especially in the heart of the city.
Today, young boys and girls have merciless competition, and a regime of exhausting tuition and attendance in coaching classes.
He is the man who is involved in the merciless killing.
I am deeply anguished to learn about merciless killing of my best friend.