cheerful vs buoyant

cheerful and buoyant both are adjectives.

Word	Noun	Adjective	Verb	Adverb
cheerful	No	Yes	No	No
buoyant	No	Yes	No	No

cheerful (adjective)	buoyant (adjective)
being full of or promoting cheer; having or showing good spirits	characterized by liveliness and lightheartedness
pleasantly (even unrealistically) optimistic	tending to float on a liquid or rise in air or gas