" remorselessness "

1: as in impenitence;

•  Synonyms : 

•  impenitence

•  Antonyms : 

•  contriteness,

•  contrition,

•  guilt,

•  penitence,

•  regret,

•  remorse,

•  remorsefulness,

•  repentance,

•  rue,

•  self-reproach,

•  shame,

•  compunction,

•  misgiving,

•  prick,

•  qualm,

•  scruple,

•  blame,

•  culpability,

•  fault

1: not sorry for having done wrong;

  * e.g., " ... the remorseless killer was sentenced to life in prison without chance of parole "

•  Synonyms : 

•  impenitent,

•  shameless,

•  unashamed,

•  unrepentant

•  Antonyms : 

•  apologetic,

•  ashamed,

•  compunctious,

•  contrite,

•  guilty,

•  penitent,

•  regretful,

•  remorseful,

•  repentant,

•  rueful,

•  shamed,

•  sorry

2: having or showing a lack of sympathy or tender feelings;

  * e.g., " ... a remorseless and implacable hit man wordlessly pursuing his victim "

•  Synonyms : 

•  affectless,

•  callous,

•  case-hardened,

•  cold-blooded,

•  compassionless,

•  desensitized,

•  hard,

•  hard-boiled,

•  hard-hearted,

•  heartless,

•  indurate,

•  inhuman,

•  inhumane,

•  insensate,

•  insensitive,

•  ironhearted,

•  merciless,

•  obdurate,

•  pachydermatous,

•  pitiless,

•  ruthless,

•  slash-and-burn,

•  soulless,

•  stony,

•  stonyhearted,

•  take-no-prisoners,

•  thick-skinned,

•  uncharitable,

•  unfeeling,

•  unmerciful,

•  unsparing,

•  unsympathetic

•  Antonyms : 

•  charitable,

•  compassionate,

•  humane,

•  kindhearted,

•  kindly,

•  merciful,

•  sensitive,

•  softhearted,

•  sympathetic,

•  tender,

•  tenderhearted,

•  warm,

•  warmhearted