Greek-English translations for ανώφελος

• idle
  idle hours
  My computer hibernates after it has been idle for 30 minutes
  idle workmen
• ineffectual
  Our group leader proved highly ineffectual, caving to every whim put forth by the other members
• useless
  This fork has prongs that are bent. Its useless now.
  I think its useless to keep this discussion going. Its like talking to a wall.
  I tried my best to make him quit smoking, but my efforts were useless. He now smokes six packs a day.