Also found in: Medical, Idioms.
let·downor let-down (lĕt′doun′)
1. A decrease, decline, or relaxation, as of effort or energy.
2. A disappointment: The cancellation of the game was a real letdown.
3. The descent made by an aircraft in order to land.
4. A physiological response in lactating females, activated usually in response to sucking or crying by an infant, in which milk previously secreted into the alveoli of the breasts is released into the ducts that lead to the nipple.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
let-down[ˈlɛtˌdaʊn] n (disappointment) → delusione f
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995