diehard vs conservative

diehard and conservative both are nouns.

Word	Noun	Adjective	Verb	Adverb
diehard	Yes	No	No	No
conservative	Yes	Yes	No	No

As nouns, conservative is a hypernym of diehard; that is, conservative is a word with a broader meaning than diehard:

Other hypernyms of diehard include conservativist.

diehard (noun)	conservative (noun)
one who adheres to traditional views	a person who is reluctant to accept changes and new ideas

diehard (adjective)	conservative (adjective)
	resistant to change, particularly in relation to politics or religion
	unimaginatively conventional
	conforming to the standards and conventions of the middle class
	avoiding excess
	having social or political views favoring conservatism