coldly russian

• хо́лодно

  it is cold, coldly

• бесстра́стно

  impassively, dispassionately, unfeelingly, coldly

• безду́шно

  soullessly, heartlessly, unfeelingly, coldly, callously

Examples

• Нет, я нет, - отве́тил англича́нин холодно.

  No, I'm not, replied the Englishman coldly.