Crushing Failure
Utterly Beaten, Overwhelming Defeat
noun, verbal noun
Failure that causes disaster is a crushing failure and you were utterly beaten by your opponent.
This is a jukugo word that uses on'yomi readings of the kanji. You learned a slightly different on'yomi reading for 惨 with the kanji, so here's a mnemonic to help you remember how to read it here:
Your crushing failure occurred in Zanzibar (ざん), where you were utterly beaten in an intense game of beach volleyball. What a fool you were for thinking an amateur like yourself could ever conquer Zanzibar's cutthroat beach volleyball scene.
日本はワールドカップで惨敗してしまった。
Japan suffered a crushing failure at the World Cup.