Zairean vs African

Zairean and African both are nouns.

Word	Noun	Adjective	Verb	Adverb
Zairean	Yes	Yes	No	No
African	Yes	Yes	No	No

As nouns, African is a hypernym of Zairean; that is, African is a word with a broader meaning than Zairean:

Zairean (noun)	African (noun)
a native or inhabitant of Zaire	a native or inhabitant of Africa

Zairean (adjective)	African (adjective)
of or relating to or characteristic of Zaire or its people	of or relating to the nations of Africa or their peoples