prosperity vs upbeat

prosperity and upbeat both are nouns.

Word	Noun	Adjective	Verb	Adverb
prosperity	Yes	No	No	No
upbeat	Yes	Yes	No	No

As nouns, upbeat is a hyponym of prosperity; that is, upbeat is a word with a more specific, narrower meaning than prosperity:

Other hyponyms of prosperity include eudaemonia, eudaimonia, welfare, well-being, wellbeing, strength, success.

prosperity (noun)	upbeat (noun)
the condition of prospering; having good fortune	an unaccented beat (especially the last beat of a measure)
an economic state of growth with rising profits and full employment	a contented state of being happy and healthy and prosperous

prosperity (adjective)	upbeat (adjective)
	pleasantly (even unrealistically) optimistic