exultation

US /ˌeɡ.zəlˈteɪ.ʃən/
UK /ˌeɡ.zəlˈteɪ.ʃən/
1.

sự hân hoan

a condition of great pleasure or happiness, especially at someone else's defeat or failure:

:
•
The expression on his face was a blend of exultation and hostility.