buoyant

[ boi-uhnt, boo-yuhnt ]
/ ˈbɔɪ ənt, ˈbu yənt /

adjective

tending to float in a fluid.
capable of keeping a body afloat, as a liquid.
not easily depressed; cheerful.
cheering or invigorating.

Origin of buoyant

First recorded in 1570–80; buoy + -ant

OTHER WORDS FROM buoyant

Example sentences from the Web for buoyant

British Dictionary definitions for buoyant

buoyant
/ (ˈbɔɪənt) /

adjective

able to float in or rise to the surface of a liquid
(of a liquid or gas) able to keep a body afloat or cause it to rise
cheerful or resilient

Word Origin for buoyant

C16: probably from Spanish boyante, from boyar to float, from boya buoy, ultimately of Germanic origin