adverb (r)

• not ever; at no time in the past or future(adv.all)

  Example:
  I have never been to China.
  I shall never forget this day.
  Had never seen a circus.
  Never on Sunday.
  I will never marry you!.
  

  Antonym:
  always, e'er, ever
  

  source: wordnet30
• not at all; certainly not; not in any circumstances(adv.all)

  Example:
  Never fear.
  Bringing up children is never easy.
  That will never do.
  What is morally wrong can never be politically right.
  

  source: wordnet30
• Not ever; not at any time; at no time, whether past, present, or future.(adverb)

  source: webster1913