bringdown

[bring-doun]
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noun Informal.
  1. a disappointment or disillusionment; letdown: It was quite a bringdown to find myself running last in the mayoral race.
  2. anything, as a cutting remark or critical action, that causes depression or deflates one's ego; a put-down.

Origin of bringdown

1940–45; noun use of verb phrase bring down; modeled on letdown and causative of comedown
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018