noun (n)

• a situation in which no progress can be made or no advancement is possible(noun.state)

  Synonym:
  dead end, deadlock, impasse, stalemate
  

  source: wordnet30
• an interruption of normal activity(noun.event)

  Synonym:
  stand, tie-up
  

  source: wordnet30
• A standing without moving forward or backward; a stop; a state or rest.(noun)

  source: webster1913