merciless
mer|ci|less /m'ɜːrsɪləs/
[ADJ]
If you describe someone as merciless, you mean that they are very cruel or determined and do not show any concern for the effect their actions have on other people.
...the merciless efficiency of a modern police state.
= ruthless
● mercilessly [ADV] usu ADV with v, also ADV adj, ADV with cl
We teased him mercilessly...
The sun beat down mercilessly.
[ADJ]
If you describe someone as merciless, you mean that they are very cruel or determined and do not show any concern for the effect their actions have on other people.
...the merciless efficiency of a modern police state.
= ruthless
● mercilessly [ADV] usu ADV with v, also ADV adj, ADV with cl
We teased him mercilessly...
The sun beat down mercilessly.