very energetic, positive, and happy (Cambridge)
full of confidence, energy and good humour(Oxford)
The Prime Minister was in ebullient mood. (Oxford)
She sounded as ebullient and happy as ever.(Oxford)
He wasn't his usual ebullient self. (Cambridge)
Ebullient Mood
Ebullient self
Cheerful
Joyful
Depressed
Ebullience
Ebulliently