Definition of merciless in English:

merciless

Syllabification: mer·ci·less
Pronunciation: /ˈmərsələs
 
/

adjective

Showing no mercy or pity: a merciless attack with a blunt instrument figurative the merciless summer heat
More example sentences
  • The winters were brutal and the black flies were merciless in the summer.
  • The judge described the attack as savage and merciless.
  • Football can be a cruel business and the Premiership is one of the most merciless and unforgiving of all leagues.
Synonyms
ruthless, remorseless, pitiless, unforgiving, unsparing, implacable, inexorable, relentless, unremitting, inflexible, inhumane, inhuman, unsympathetic, unfeeling, intolerant, rigid, severe, cold-blooded, hard-hearted, stony-hearted, heartless, harsh, callous, cruel, brutal, barbarous, cutthroat

Derivatives

mercilessly

adverb
More example sentences
  • The ancient opinion that Lycurgus was mercilessly severe in his prosecutions is supported by the study of this speech.
  • Nonetheless, they tortured and killed mercilessly and were brutally exploitative of the survivors.
  • If he ever gets to be Tory leader they will exploit his ‘old’ elitist background mercilessly.

mercilessness

noun
More example sentences
  • The showdown was fierce as both of them employed the basic rules of the trade: ruthlessness, mercilessness, and pitilessness.
  • And there are few things more vicious than the mercilessness fallen man shows a penitent.
  • Moravia's mercilessness challenges the current Anglo-American rage for a more empathic, emotional brand of narrative.

Definition of merciless in:

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