abnormality vs strangeness

abnormality and strangeness both are nouns.

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

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

Other hypernyms of abnormality include unfamiliarity.

abnormality (noun)	strangeness (noun)
behavior that breaches the rule or etiquette or custom or morality	unusualness as a consequence of not being well known
marked strangeness as a consequence of being abnormal	the quality of being alien or not native
retardation sufficient to fall outside the normal range of intelligence	(physics) one of the six flavors of quark, the third lightest of all quarks
an abnormal physical condition resulting from defective genes or developmental deficiencies