effervescent

/ˌɛfərˈvɛsənt/
adjective
  1. Producing or containing small bubbles of gas.
    • She poured the effervescent liquid into a cup and watched it fizz.
    • I prefer effervescent drinks like sparkling water over still ones.
    • The effervescent tablet dissolved quickly in the glass of water.
  2. Lively, enthusiastic, and full of positive energy.
    • Her effervescent personality made her a favorite among her coworkers.
    • He gave an effervescent speech that had everyone cheering.
    • The children were effervescent with excitement on the last day of school.
Antonyms
What does "effervescent" mean? | whatsthatwordmean | whatsthatwordmean