let·down
ˈlet-ˌdau̇n 
1
a
: discouragement, disappointment
his latest novel is a letdown
b
: a slackening of effort : relaxation
2
: the descent of an aircraft or spacecraft to the point at which a landing approach is begun
3
: a physiological response of a lactating mammal to suckling and allied stimuli whereby previously secreted milk from the acini is expelled into ducts and drawn through the nipple
let down; letting down; lets down
1
: to allow to descend gradually
2
a
: to fail to support
felt her parents had let her down
b
: disappoint
the plot lets you down at the end
afraid of letting his father down
Synonyms
Examples of letdown in a Sentence
Noun
the museum exhibit was just so-so, and we returned home with a vague sense of letdown
the eagerly anticipated new movie starring our favorite actor turned out to be a big letdown
Verb
with my poor performance I really felt that I had let my teammates down
Recent Examples on the Web
James Grebey, Vulture, 9 Nov. 2024
Photo : Mercedes 2005: A Return to Form for the S
For all its appeal, the W220 was seen by some as a letdown compared with its predecessors (poor quality control on some early-build versions didn’t set a great tone).
—Will Sabel Courtney, Robb Report, 8 Oct. 2024
Nicole Acevedo, NBC News, 6 Nov. 2024
Isaac views his current predicament as punishment for letting down everyone in his life, before and after his death.
—Vlada Gelman, TVLine, 17 Oct. 2024
See all Example Sentences for letdown 
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Noun
Did returning to recording to the normal show feel like a letdown?
—James Grebey, Vulture, 9 Nov. 2024
Photo : Mercedes 2005: A Return to Form for the S
For all its appeal, the W220 was seen by some as a letdown compared with its predecessors (poor quality control on some early-build versions didn’t set a great tone).
—Will Sabel Courtney, Robb Report, 8 Oct. 2024
Verb
Dalmau’s growing support was not directly related to more Puerto Ricans supporting independence, but a response from a growing body of voters who felt let down by both traditional parties.
—Nicole Acevedo, NBC News, 6 Nov. 2024
Isaac views his current predicament as punishment for letting down everyone in his life, before and after his death.
—Vlada Gelman, TVLine, 17 Oct. 2024
See all Example Sentences for letdown
Dictionary Entries Near letdown
Cite this Entry
“Letdown.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/letdown. Accessed 28 Nov. 2024.
Copy CitationKids Definition
letdown
1 of 2 noun
let·down
ˈlet-ˌdau̇n
2
: a slackening of effort
let down
2 of 2 verb(ˈ)let-ˈdau̇n
1
: to fail to help or support
let down a friend in a crisis
2
: to fail to come up to expectations : disappoint
the end of the story lets the reader down
Medical Definition
letdown
1 of 2 nounˈlet-ˌdau̇n
: a physiological response of a lactating mammal to suckling and allied stimuli whereby increased intramammary pressure forces previously secreted milk from the acini and finer tubules into the main collecting ducts from where it can be drawn through the nipple
let down
2 of 2 transitive verb
: to release (formed milk) within the mammary gland or udder
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