IPA: /ˈkoʊmˌdaʊn/
KK: /ˈkoʊmˌdaʊn/
A situation or feeling that causes disappointment or a decline in status or happiness.
After winning the championship, the team experienced a comedown when they lost the next game.
Comedown → It is formed from "come" (from Old English "cuman", meaning to arrive or move toward) and "down" (from Old English "dūn", meaning down or lower). The word "comedown" refers to the act of arriving at a lower position or state, often after a high or elevated experience.
Think of arriving ('come') at a lower place ('down') — that's what comedown means.