Joyously unrestrained

• Bubbling over
• In high spirits
• Very enthusiastic e-bulletin put out
• Overflowing with fervor

Longman Dictionary of Contemporary English Word definitions in Longman Dictionary of Contemporary English
adjective EXAMPLES FROM OTHER ENTRIES ▪ Supporters of the amendment were ebullient at the outcome of the vote. EXAMPLES FROM CORPUS ▪ A famously ebullient man, Fuller was initially stiff and uncomfortable as an actor. ▪ He is as good as his name, as wild, ...

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
Ebullient \E*bul"lient\, a. [L. ebulliens, -entis, p. pr. of ebullire to boil up, bubble up; e out, from + bullire to boil. See 1st Boil .] Boiling up or over; hence, manifesting exhilaration or excitement, as of feeling; effervescing. ``Ebullient with ...

Wiktionary Word definitions in Wiktionary
a. 1 enthusiastic; high-spirited. 2 (of a liquid) boiling or agitated as if boiling

Wikipedia Word definitions in Wikipedia