WordRel.com

• not in operation or operational

  antonym	on
  similar	disconnected

• (of events) no longer planned or scheduled

  synonym	cancelled
  antonym	on

• not performing or scheduled for duties

  similar

  inactive

• in an unpalatable state

  synonym	sourturned
  similar	soured

• below a satisfactory level

  similar

  unsatisfactory

• kill intentionally and with premeditation

  synonym	bump offdispatchhitmurderpolish offremoveslay
  exemplifies	depreciationderogationdisparagement
  hypernym	kill
  hyponym	burkeexecute

• at a distance in space or time

  synonym

  away

• from a particular thing or place or position (`forth' is obsolete)

  synonym	awayforth
  exemplifies	archaicismarchaism

• no longer on or in contact or attached