IPA: //ˈdʒuːbɪləntli//
KK: /ˈdʒuːbɪləntli/
In a way that shows great happiness and joy.
The children danced jubilantly at the festival.
**Jubilantly** → It is formed from "jubilare" (from Latin, meaning to shout for joy) and the suffix "-ly" (meaning in a manner of). The word "jubilantly" means in a manner that expresses great joy or happiness.
Think of the Latin word for shouting for joy — that's what jubilantly means, expressing joy in a lively manner.