Scrabble?! ANTICLIMAX

Definitions of ANTICLIMAX in various dictionaries:

noun - a disappointing decline after a previous rise

noun - a change from a serious subject to a disappointing one

A decline viewed in disappointing contrast with a previous rise: the anticlimax of a brilliant career.

Something trivial or commonplace that concludes a series of significant events: After a week of dramatic negotiations, all that followed was anticlimax.

A sudden descent in speaking or writing from the impressive or significant to the ludicrous or inconsequential, or an instance of it: “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).