English to English

noun (n)

• feelings of extreme heartlessness(noun.feeling)

  Synonym:
  cruelty, pitilessness, ruthlessness
  

  source: wordnet30
• inhumaneness evidenced by an unwillingness to be kind or forgiving(noun.attribute)

  Synonym:
  unmercifulness
  Antonym:
  mercifulness, mercy
  

  source: wordnet30