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• pipe dream
  pipe dream

  noun

  any fantastic notion, hope, or story.
• pipe-dream
  pipe-dream

  verb (used without object)

  to indulge in pipe dreams; fantasize.

pipe dream

¹ American  

noun

1. any fantastic notion, hope, or story.

   Her plans for a movie career are just a pipe dream.

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pipe-dream ² American  

[pahyp-dreem] / ˈpaɪpˌdrim /

verb (used without object)

pipe-dreamed, pipe-dreamt, pipe-dreaming

1. to indulge in pipe dreams; fantasize.

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pipe dream British  

noun

1. a fanciful or impossible plan or hope

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pipe dream Idioms  

1. A fantastic notion or vain hope, as in I'd love to have one home in the mountains and another at the seashore, but that's just a pipe dream. Alluding to the fantasies induced by smoking an opium pipe, this term has been used more loosely since the late 1800s.

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Etymology

Origin of pipe dream

An Americanism dating back to 1895–1900

Example Sentences

WSJ explores whether data centers in space are a pipe dream or AI’s next big thing.

From The Wall Street Journal • May 12, 2026

“It was a pipe dream for so long … the notion that we would get a subway to the Westside,” Yaroslavsky said.

From Los Angeles Times • May 7, 2026

The oil-futures market thinks oil will fall from $98 a barrel today to $80 by September and $75 by Christmas — but that may be a pipe dream.

From MarketWatch • Apr. 11, 2026

Yes, you could argue that the inconsistency is on the field, but it is a pipe dream to expect overall consistency when every situation is slightly different.

From BBC • Mar. 1, 2026

I loved the idea, even though the gallery seemed like a pipe dream.

From "How Dare the Sun Rise" by Sandra Uwiringiyimana

Related Words

• daydream
• wishful thinking