adjective
effervescent
ef-er-VESS-unt/ˌefərˈvesnt/
Bubbling as gas escapes.
The host carries two glasses of effervescent water with bubbles rising inside.

Etymology
The underlying image is of boiling up or over. It describes a bubbling liquid directly and, figuratively, someone whose enthusiasm seems to bubble over.
In context
he's the tiger with the belly comedian actor effervescent human mr. Bobby Lee
More examples
- An effervescent tablet fizzes as it dissolves in water.
- Freshly poured soda is noticeably effervescent.
- She prefers effervescent mineral water to still water.
Forms
effervescent
effervesce verb — To give off bubbles of gas.
effervescence noun — The release of gas as bubbles.
Similar words
- fizzy
- A more informal alternative, especially for carbonated drinks.
- bubbly
- Emphasizes visible bubbles rather than the release of gas.