Meaning : Cheerfulness that bubbles to the surface.
Synonyms : perkiness
Meaning : The property of something weightless and insubstantial.
Synonyms : airiness
Meaning : The tendency to float in water or other liquid.
Meaning : Irrepressible liveliness and good spirit.
Example :
I admired his buoyancy and persistent good humor.
Synonyms : irrepressibility
Buoyancy ka meaning, vilom shabd, paryayvachi aur samanarthi shabd in Hindi. Buoyancy ka matlab kya hota hai?