transcription, транскрипция: [ mɜ:(r)sɪləs ]
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
ADJ
• mer‧ci‧less‧ly
We teased him mercilessly...
The sun beat down mercilessly.
ADV : usu ADV with v , also ADV adj , ADV with cl