doctrinaire vs partisan

doctrinaire and partisan both are nouns.

Word	Noun	Adjective	Verb	Adverb
doctrinaire	Yes	Yes	No	No
partisan	Yes	Yes	No	No

As nouns, partisan is a hypernym of doctrinaire; that is, partisan is a word with a broader meaning than doctrinaire:

Other hypernyms of doctrinaire include drumbeater, zealot.

doctrinaire (noun)	partisan (noun)
a stubborn person of arbitrary or arrogant opinions	a pike with a long tapering double-edged blade with lateral projections; 16th and 17th centuries
	a fervent and even militant proponent of something
	an ardent and enthusiastic supporter of some person or activity

doctrinaire (adjective)	partisan (adjective)
stubbornly insistent on theory without regard for practicality or suitability	devoted to a cause or party