noun (n)

• an event resulting in great loss and misfortune(noun.event)

  Synonym:
  calamity, cataclysm, catastrophe, disaster
  

  source: wordnet30
• drama in which the protagonist is overcome by some superior force or circumstance; excites terror or pity(noun.communication)

  Antonym:
  comedy
  

  source: wordnet30
• A dramatic poem, composed in elevated style, representing a signal action performed by some person or persons, and having a fatal issue; that species of drama which represents the sad or terrible phases of character and life.(noun)

  source: webster1913