IPA: /ˈdʒuːbɪlənt/
KK: /ˈdʒuːbɪlənt/
Feeling or showing great happiness and joy.
The crowd was jubilant after their team won the championship.
Jubilant → It is formed from "jubilare" (meaning to shout for joy) and the suffix "-ant" (indicating an agent or one who performs an action). The word "jubilant" describes someone who is expressing joy or exultation.
Think of someone who is 'shouting for joy' ('jubilare') — that's why jubilant means feeling or showing great happiness.