Synonyms of 'comedown'
1 declineDictionary, reverse, demotion
His new job is a comedown after the high office he held previously.
2 disappointmentDictionary, blow, humiliation
After all the build-up, the wedding itself was a bit of a comedown.
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You can describe something as an anticlimax if it disappoints you because it happens after something that was very exciting, or because it is not as exciting as you expected.
His international career ended in anticlimax.
If something that happens is a blow to someone or something, it is very upsetting, disappointing, or damaging to them.
The ruling comes as a blow to environmentalists.
Thesaurus for comedown from the Collins English Thesaurus
If you say that something is a comedown , you think that it is not as good as something else that you have just done or had.