Learn how to say Buoyantly correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word buoyant:
1able or tending to keep afloat or rise to the top of a liquid or gas.
(of a liquid or gas) able to keep something afloat:
2cheerful and optimistic:
the conference ended with the party in a buoyant mood
3(of an economy, business, or market) involving or engaged in much successful trade or activity:
car sales were buoyant
late 16th century: from French bouyant or Spanish boyante, present participle of boyar ‘to float’ (see buoy)