形容詞 jubilant:

1. joyful and proud especially because of triumph or success
   同義詞：exultant, exulting, prideful, rejoicing, triumphal, triumphant
2. full of high-spirited delight
   同義詞：elated, gleeful, joyful

1. Full of jubilant delight; joyful.
   充滿歡喜的; 快樂的
2. Liverpool were in a jubilant mood after their cup victory.
   利物浦隊(duì)奪得優(yōu)勝杯後喜氣洋洋。

ju.bi.lant

adj.（形容詞）
Exultingly joyful.
歡騰的，歡欣的，喜氣洋洋的
Expressing joy.
顯示出快樂的，表達(dá)歡樂的

來源：
Latin iôbil3ns iôbilant- [present participle of] iôbil3re [to raise a shout of joy]
拉丁語 iôbil3ns iôbilant- [] iôbil3re的現(xiàn)在分詞 [發(fā)出歡樂的喊聲，歡呼]

【引伸】
ju.bilance
n.（名詞）
ju.bilantly
adv.（副詞）