Synonyms for Vain attempt:

• n.

  •Other relevant words: (noun)
  • waste of time,
  • lost cause,
  • wasted labor,
  • fool's errand,
  • wild goose chase,
  • snipe hunt,
  • merry chase,
  • wasted effort,
  • bootless errand,
  • wild-goose chase.
  •wild-goose chase (noun)
  • red herring.