Burundian vs Burundi

Burundian and Burundi both are nouns.

Word	Noun	Adjective	Verb	Adverb
Burundian	Yes	Yes	No	No
Burundi	Yes	Yes	No	No

As adjectives, Burundian and Burundi are synonyms defined as:

Burundian and Burundi: of or relating to or characteristic of Burundi or its people

Burundian (noun)	Burundi (noun)
a native or inhabitant of Burundi	a landlocked republic in east central Africa on the northeastern shore of Lake Tanganyika

Burundian (adjective)	Burundi (adjective)
of or relating to or characteristic of Burundi or its people	of or relating to or characteristic of Burundi or its people