adventurousness vs hardiness

adventurousness and hardiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
adventurousness	Yes	No	No	No
hardiness	Yes	No	No	No

As nouns, hardiness is a hypernym of adventurousness; that is, hardiness is a word with a broader meaning than adventurousness:

adventurousness: the trait of being adventurous
hardiness: the trait of being willing to undertake things that involve risk or danger

Other hypernyms of adventurousness include boldness, daring, hardihood.

adventurousness (noun)	hardiness (noun)
the trait of being adventurous	the property of being strong and healthy in constitution
	the trait of being willing to undertake things that involve risk or danger