bringdown

[ bring-doun ]
/ ˈbrɪŋˌdaʊn /

noun Informal.

a disappointment or disillusionment; letdown: It was quite a bringdown to find myself running last in the mayoral race.
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