anticlimax

/ˌæn.tiˈklaɪ.mæks/

/-t̬i-/

Definition

› an event or experience that causes disappointment because it is less exciting than was expected or because it happens immediately after a much more interesting or exciting event: When you really look forward to something it's often an anticlimax when it actually happens. Coming home after a trip somewhere is always a bit of an anticlimax. Even when you win a match there's often a sense of anticlimax - you always feel you could have played better.Disappointing yourself and others anticlimactic

/ˌæn.ti.klaɪˈmæk.tɪk/

/-t̬ɪk/ adjective › There was so much publicity and hype beforehand that the performance itself was a touch anticlimactic.Disappointing yourself and others

(Definition of anticlimax noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)