castles in the sky

castles in the sky

Dreams, hopes, or plans that are impossible, unrealistic, or have very little chance of succeeding. He keeps talking about how he'll move to Los Angeles to be a famous actor, but it's just castles in the sky if you ask me. You need sound financial advice and a strong plan if you're going to start your own business—it can't be all castles in the sky.
See also: castle, sky
Farlex Dictionary of Idioms.
See also:
  • castles in Spain
  • castles in the air
  • build castles in Spain
  • build castles in the air
  • build castles in the sky
  • Spain
  • be in a dream world
  • a lost cause
  • lost cause
  • lost cause, a
References in periodicals archive
" The film, directed by Gilles" The film, directed by Gilles Mackinnon, tells of the genius of Watson-Watt, whose ideas were initially dismissed by the Oxbridge-dominated establishment as "Castles in the Sky".
TV STAR BREAKING AT HOME'S NOT BAD
Watt's ambition was initially dismissed by the Oxbridge-dominated establishment including Winston Churchill as "Castles in the Sky."
best factual drama
Without the help of charities like this, parents like us would find it really hard to get out and about with a disabled child." Amanda Glendinning, owner of Castles In The Sky, said: "We just wanted to make a nice little gesture and offer an extra day out for Lila and Molly."
Below left, Lila, Molly and Amanda Glendinning, of Castles In The Sky
Special day out makes all the difference to Lila; Two-year-old is the guest of honour at day of fun