Bavarian vs German

Bavarian and German both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bavarian	Yes	Yes	No	No
German	Yes	Yes	No	No

As nouns, German is a hypernym of Bavarian; that is, German is a word with a broader meaning than Bavarian:

Bavarian (noun)	German (noun)
a native or an inhabitant of Bavaria	the standard German language; developed historically from West Germanic
	a person of German nationality

Bavarian (adjective)	German (adjective)
of or relating to or characteristic of Bavaria or its people	of or pertaining to or characteristic of Germany or its people or language