" coldheartedness "

1: as in callousness, heartlessness;

•  Synonyms : 

•  callousness,

•  hard-heartedness,

•  heartlessness,

•  indifference,

•  insensitivity,

•  unconcern,

•  cruelty,

•  harshness,

•  inhumanity,

•  animosity,

•  antipathy,

•  dislike,

•  hatred,

•  hostility

•  Antonyms : 

•  commiseration,

•  compassion,

•  feeling,

•  sympathy,

•  condolence,

•  regret,

•  humaneness,

•  humanity,

•  kindheartedness,

•  kindliness,

•  kindness,

•  mercy,

•  pity,

•  ruth,

•  softheartedness,

•  warmheartedness

1: lacking kindness, sympathy, or sensitivity;

  * e.g., " ... She's a smart but coldhearted woman. "

•  Synonyms : 

•  bloodless,

•  hard-hearted,

•  heartless,

•  kindless,

•  pitiless,

•  uncaring,

•  unfeeling,

•  antiseptic,

•  arctic,

•  brittle,

•  chill,

•  chilly,

•  clammy,

•  cold,

•  cold-blooded,

•  cold-eyed,

•  coldish,

•  cool,

•  frigid,

•  frosty,

•  frozen,

•  gelid,

•  glacial,

•  hard-eyed,

•  icy,

•  uncordial,

•  unfriendly,

•  unsympathetic,

•  wintry,

•  reserved,

•  soulless,

•  undemonstrative,

•  unemotional,

•  unresponsive,

•  apathetic,

•  indifferent,

•  unenthusiastic,

•  uninterested,

•  aloof,

•  detached,

•  dispassionate,

•  impersonal,

•  offish,

•  standoffish,

•  antisocial,

•  unsociable,

•  unsocial

•  Antonyms : 

•  cordial,

•  friendly,

•  genial,

•  happy,

•  hearty,

•  sympathetic,

•  warm,

•  warm-blooded,

•  warmhearted,

•  compassionate,

•  kind,

•  kindhearted,

•  demonstrative,

•  emotional,

•  expressive,

•  eager,

•  enthusiastic,

•  passionate