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Definitions

buoyant

[boi-uhnt, boo-yuhnt] / ˈbɔɪ ənt, ˈbu yənt /
ADJECTIVE
light in weight
Synonyms
STRONGEST
bouncy resilient
WEAK
afloat airy floatable floating supernatant unsinkable weightless
Antonyms
WEAK
depressed down heavy heavy-hearted weighted
ADJECTIVE
light in spirit
Synonyms
STRONGEST
bouncy breezy bright cheerful expansive jaunty jovial joyful lighthearted lively peppy resilient sunny
WEAK
animated blithe carefree debonair effervescent elastic full of zip gay happy invigorated laid back supple vivacious
Antonyms
STRONGEST
apathetic cloudy depressed gloomy inactive lethargic lifeless quiet sad unhappy upset
WEAK
down heavy heavy-hearted weighted

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

How long the buoyant mood can last, however, is anyone’s guess.

From Barron's • Apr. 8, 2026

How long the buoyant mood can last, however, is anyone’s guess.

From Barron's • Apr. 8, 2026

From what we see of Scotty in flashbacks, he was a buoyant blond goofball — exactly the kind of guy that the apparently friendless and family-less Kenna would have clung to like a life preserver.

From Los Angeles Times • Mar. 12, 2026

U.S. natural gas futures settled lower as easing demand for heating weighed against buoyant LNG export flows.

From The Wall Street Journal • Mar. 10, 2026

Yusef was so buoyant all the time; his smiles were occasionally contagious.

From "A Very Large Expanse of Sea" by Tahereh Mafi