strangeness vs exotism

strangeness and exotism both are nouns.

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

As nouns, exotism is a hyponym of strangeness; that is, exotism is a word with a more specific, narrower meaning than strangeness:

Other hyponyms of strangeness include exoticism, exoticness, alienage, alienism.

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