propitiousness vs favorableness

propitiousness and favorableness both are nouns.

Word	Noun	Adjective	Verb	Adverb
propitiousness	Yes	No	No	No
favorableness	Yes	No	No	No

As nouns, favorableness is a hypernym of propitiousness; that is, favorableness is a word with a broader meaning than propitiousness:

propitiousness: the favorable quality of strongly indicating a successful result
favorableness: the quality of being encouraging or promising of a successful outcome

Other hypernyms of propitiousness include advantageousness, favourableness, positiveness, positivity, profitableness.

propitiousness (noun)	favorableness (noun)
the favorable quality of strongly indicating a successful result	the quality of being encouraging or promising of a successful outcome