anticlimax Meaning, Definition & Usage

  1. noun a disappointing decline after a previous rise
    • the anticlimax of a brilliant career
  2. noun a change from a serious subject to a disappointing one
    bathos.

WordNet

An`ti*cli"max noun
Definitions
  1. (Rhet.) A sentence in which the ideas fall, or become less important and striking, at the close; -- the opposite of climax. It produces a ridiculous effect. Example:
    Next comes Dalhousie, the great god of war, Lieutenant-colonel to the Earl Mar.

Webster 1913