Jubilant

"See yon twelve swans, in jubilant array, / whom late Jove's eagle scattered through the sky; / now these alight, now those the pitch survey."

A festive, jubilant crowd thronged Berlin’s historic Brandenburg Gate.

I got a thesaurus as a present and I feel very happy, glad, cheerful, jovial, jubilant and merry.

The crowd is jubilant.

be in jubilant mood