Definition of pipe dream in English:

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pipe dream


An unattainable or fanciful hope or scheme: free trade in international aviation will remain a pipe dream
More example sentences
  • We deserve a system where clean, sustainable energy is something more than a pipe dream for delusional hippies.
  • If they stayed loyal to the ARL, super-league would have remained a pipe dream.
  • So it would be a pipe dream to expect the council to grass it over (although that would look lovely).
fantasy, false hope, illusion, delusion, daydream, unrealizable dream, reverie, mirage, castle in the air, castle in Spain, chimera
informal pie in the sky


Late 19th century: referring to a dream experienced when smoking an opium pipe.

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