noun (n)

• a person who is loathsome or disgusting(noun.person)

  source: wordnet30
• hate coupled with disgust(noun.feeling)

  Synonym:
  abhorrence, detestation, execration, loathing, odium
  

  source: wordnet30
• an action that is vicious or vile; an action that arouses disgust or abhorrence(noun.act)

  Example:
  His treatment of the children is an abomination.
  

  source: wordnet30
• The feeling of extreme disgust and hatred; abhorrence; detestation; loathing; as, he holds tobacco in abomination.(noun)

  source: webster1913