Ebullient (adjective)

Overflowing with enthusiasm and excitement.

Origin:

Late 16th century: from latin ebullient- "boiling up", from the verb ebullire.

Examples:

1. He was ebullient with joy.
2. The ebullient crowd was cheering and clapping.
3. The ebullient speaker captivated the audience.
4. Her ebullient personality made her a joy to be around.
5. The ebullient energy in the room was infectious.