unusual person vs mortal

unusual person and mortal both are nouns.

Word	Noun	Adjective	Verb	Adverb
unusual person	Yes	No	No	No
mortal	Yes	Yes	No	No

As nouns, mortal is a hypernym of unusual person; that is, mortal is a word with a broader meaning than unusual person:

unusual person: a person who is unusual
mortal: a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential

Other hypernyms of unusual person include individual, person, somebody, someone, soul.

unusual person (noun)	mortal (noun)
a person who is unusual	a human being; person, singular, assertive existential pronoun; pronoun, person, singular; quantifier: assertive existential

unusual person (adjective)	mortal (adjective)
	subject to death
	unrelenting and deadly
	involving loss of divine grace or spiritual death
	causing or capable of causing death