buoyant
Definitions
Able to stay afloat or rise to the top of a liquid or gas.
Cheerful and optimistic in disposition.
Capable of maintaining a high or resilient level of activity or prices.
Examples
The cork remained buoyant even after being submerged in the water for several minutes.
Despite the economic downturn, the company maintained a buoyant outlook for the upcoming fiscal year.
Her buoyant personality made her a favorite among her colleagues and friends.
Synonyms
cheerful resilient optimistic lighthearted floating bouncy vivacious
Antonyms
depressed sinking heavy pessimistic gloomy despondent melancholy