eccentricity vs strangeness

eccentricity and strangeness both are nouns.

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

As nouns, strangeness is a hypernym of eccentricity; that is, strangeness is a word with a broader meaning than eccentricity:

Other hypernyms of eccentricity include unfamiliarity.

eccentricity (noun)	strangeness (noun)
strange and unconventional behavior	unusualness as a consequence of not being well known
a circularity that has a different center or deviates from a circular path	the quality of being alien or not native
(geometry) a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis	(physics) one of the six flavors of quark, the third lightest of all quarks