buoy·ant

[boi-uhnt, boo-yuhnt]
adjective
1.
tending to float in a fluid.
2.
capable of keeping a body afloat, as a liquid.
3.
not easily depressed; cheerful.
4.
cheering or invigorating.

Origin:
1570–80; buoy + -ant

buoy·ant·ly, adverb
non·buoy·ant, adjective
non·buoy·ant·ly, adverb
un·buoy·ant, adjective
un·buoy·ant·ly, adverb


3. happy, lighthearted, breezy, jaunty, sunny.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To buoyant
00:10
Buoyant is always a great word to know.
So is gobo. Does it mean:
a screen or mat covered with a dark material for shielding a camera lens from excess light or glare.
an arrangement of five objects, as trees, in a square or rectangle, one at each corner and one in the middle.
Collins
World English Dictionary
buoyant (ˈbɔɪənt) [Click for IPA pronunciation guide]
 
adj
1.  able to float in or rise to the surface of a liquid
2.  (of a liquid or gas) able to keep a body afloat or cause it to rise
3.  cheerful or resilient
 
[C16: probably from Spanish boyante, from boyar to float, from boya buoy, ultimately of Germanic origin]

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

buoyant
1570s, perhaps from Sp. boyante, prp. of boyar "to float," from boya "buoy," from Du. boei (see buoy). Of personalities, etc., from c.1748.
Online Etymology Dictionary, © 2010 Douglas Harper
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Example sentences
But continental crust is too light and buoyant to be subducted.
Among the corrections élite, only the entrepreneurs are buoyant.
Its buoyant economy will produce microchips and jumbo fridges for the world.
For exercise, water therapy suits his buoyant personality, and he plans to buy
  a trampoline soon to keep the bounce in his step.
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