curiousness vs strangeness

curiousness and strangeness both are nouns.

Word	Noun	Adjective	Verb	Adverb
curiousness	Yes	No	No	No
strangeness	Yes	No	No	No

As nouns, curiousness and strangeness are synonyms defined as:

Other synonyms of curiousness include foreignness.

curiousness (noun)	strangeness (noun)
the quality of being alien or not native	unusualness as a consequence of not being well known
a state of active curiosity	the quality of being alien or not native
	(physics) one of the six flavors of quark, the third lightest of all quarks