Definify.com
Webster 1913 Edition
Buoyant
1.
Having the quality of rising or floating in a fluid; tending to rise or float;
“Buoyant on the flood.” as, iron is
. buoyant
in mercuryPope.
2.
Bearing up, as a fluid; sustaining another body by being specifically heavier.
The water under me was
buoyant
. Dryden.
3.
Light-hearted; vivacious; cheerful;
– as, a
. buoyant
disposition; buoyant
spiritsBuoy′ant-ly
, adv.
Webster 1828 Edition
Buoyant
BUOY'ANT
,Adj.
1.
Bearing up, as a fluid; sustaining another body. [Unusual.]