anticlimax[noun]Synonyms: disappointment, bathos, comedown
(informal), letdown
[TahlilGaran] English Synonym Dictionary ▲
an‧ti‧cli‧max /ˌæntɪˈklaɪmæks/
noun [uncountable and countable] a situation or event that does not seem exciting because it happens after something that was much better:
Going back to work after a month travelling in China was bound to be an anticlimax. [TahlilGaran] Dictionary of Contemporary English ▲