noun (n)

• the time yet to come(noun.time)

  Synonym:
  future, hereafter, time to come
  Antonym:
  past, past times, yesteryear
  

  source: wordnet30
• the quality of being in or of the future(noun.attribute)

  Antonym:
  nowness, presentness
  

  source: wordnet30
• State of being that is yet to come; future state.(noun)

  source: webster1913