untypicality vs abnormalcy

untypicality and abnormalcy both are nouns.

Word	Noun	Adjective	Verb	Adverb
untypicality	Yes	No	No	No
abnormalcy	Yes	No	No	No

As nouns, abnormalcy is a hypernym of untypicality; that is, abnormalcy is a word with a broader meaning than untypicality:

untypicality: any state that is not typical
abnormalcy: an abnormal physical condition resulting from defective genes or developmental deficiencies

Other hypernyms of untypicality include abnormality.

untypicality (noun)	abnormalcy (noun)
any state that is not typical	an abnormal physical condition resulting from defective genes or developmental deficiencies