noun (n)

• the quality of being warmhearted and considerate and humane and sympathetic(noun.attribute)

  Antonym:
  unkindness
  

  source: wordnet30
• tendency to be kind and forgiving(noun.attribute)

  Synonym:
  forgivingness
  

  source: wordnet30
• a kind act(noun.act)

  Synonym:
  benignity
  

  source: wordnet30
• The state or quality of being kind, in any of its various senses; manifestation of kind feeling or disposition beneficence.(noun)

  source: webster1913