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or let-down

[let-doun] /ˈlɛtˌdaʊn/
a decrease in volume, force, energy, etc.:
a letdown in sales; a general letdown of social barriers.
disillusionment, discouragement, or disappointment:
The job was a letdown.
depression; deflation:
He felt a terrible letdown at the end of the play.
the accelerated movement of milk into the mammary glands of lactating mammals upon stimulation, as by massage or suckling.
Aeronautics. the descent of an aircraft from a higher to a lower altitude preparatory to making an approach and landing or to making a target run or the like.
Origin of letdown
First recorded in 1760-70; noun use of verb phrase let down Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for letdown
Contemporary Examples
Historical Examples
  • For most people, the experience of hypnosis is something of a letdown.

  • Knowing that nothing was in sight but waiting was a letdown after the activity of the predawn hours.

    Smugglers' Reef John Blaine
Word Origin and History for letdown

also let-down, "disappointment," 1768, from let (v.) + down (adv.). The verbal phrase is from mid-12c. in a literal sense; figuratively by 1795.

Online Etymology Dictionary, © 2010 Douglas Harper
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Slang definitions & phrases for letdown



  1. A disappointment; comedown: Actually meeting him was something of a letdown (1889+)
  2. The gradual descent of an airplane toward a landing (1945+)
The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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