The research team was jubilant when their painstaking analysis of orbital data confirmed the existence of a new exoplanet.
研究团队在细致分析轨道数据确认新系外行星存在时，欣喜若狂。
Which choice best defines “jubilant”?
C — Extremely happy. “jubilant” means extremely happy.
Which word means “extremely happy”?
C — jubilant. “jubilant” means extremely happy.
jubilant — extremely happy. In Chinese: 欢欣鼓舞的.
jubilant is pronounced /ˈdʒuːbɪlənt/.
The research team was jubilant when their painstaking analysis of orbital data confirmed the existence of a new exoplanet. (研究团队在细致分析轨道数据确认新系外行星存在时，欣喜若狂。)
elated, ecstatic, exultant — all close in meaning to jubilant (extremely happy).
dejected, morose — each the opposite of jubilant (extremely happy).
Yes. jubilant is on the SAT Prep Easy list — mid-frequency academic words that do get tested. The Digital SAT does not test vocabulary in isolation; words like this one are tested through Words in Context questions, where you choose the word that completes a passage most logically and precisely.
jubil(cheer) + ant(suffix indicating adjective)