gloat
🇺🇸
/ɡləʊt/
🇬🇧
/ɡləʊt/
to take pleasure in someone else's misfortune or to be overly proud of your own success in a way that annoys others
After winning the game, he couldn't resist gloating about his victory to his friends.
ゲームに勝利した後、彼は友人たちに対して勝利について自慢しなくなることはできませんでした。