名詞 anticlimax:

1. a disappointing decline after a previous rise
2. a change from a serious subject to a disappointing one
   同義詞：bathos

1. The holiday itself was rather an anticlimax after all the excitement of planning it.
   盡管計劃度假時興致勃勃，而到頭來假日本身卻頗為掃興。

an.ti.cli.max

n.（名詞）
A decline viewed in disappointing contrast with a previous rise:
突降：與先前的上升相比呈出令人失望的下降：
例句：
the anticlimax of a brilliant career.
輝煌事業(yè)的急轉(zhuǎn)而下

Something trivial or commonplace that concludes a series of significant events:
虎頭蛇尾：在一系列重要事件后以微不足道或平淡的結(jié)尾：
例句：
After a week of dramatic negotiations, all that followed was anticlimax.
在一星期戲劇性的談判之后，所有的結(jié)尾都是令人掃興的

A sudden descent in speaking or writing from the impressive or significant to the ludicrous or inconsequential, or an instance of it:
突降法：話語或?qū)懽髦械木?，重要?nèi)容突然轉(zhuǎn)入荒謬的，平淡的或其中的一例：
例句：
.Waggish non-Yale men never seem weary of calling ‘for God, for Country and for Yale’ the outstanding single anticlimax in the English language.(Time)
.愛開玩笑的非耶魯人從不厭倦說‘為了上帝，為了國家，為了耶魯’，這是英語中一個典型的突降法例子.(時代)

【引伸】
an.ticlimac.tic
an.ticlimac.tically
adv.（副詞）