adjective (a)

• of a function or curve; possessing one or more discontinuities(adj.all)

  Antonym:
  continuous
  

  source: wordnet30
• not continuing without interruption in time or space(adj.all)

  Example:
  Discontinuous applause.
  The landscape was a discontinuous mosaic of fields and forest areas.
  He received a somewhat haphazard and discontinuous schooling.
  

  Synonym:
  noncontinuous
  Antonym:
  continuous, uninterrupted
  

  source: wordnet30
• Not continuous; interrupted; broken off.(adjective)

  source: webster1913