joviality vs good temper

joviality and good temper both are nouns.

Word	Noun	Adjective	Verb	Adverb
joviality	Yes	No	No	No
good temper	Yes	No	No	No

As nouns, good temper is a hypernym of joviality; that is, good temper is a word with a broader meaning than joviality:

Other hypernyms of joviality include gaiety, merriment, amiability, good humor, good humour.

joviality (noun)	good temper (noun)
a jovial nature	a cheerful and agreeable mood
feeling jolly and jovial and full of good humor