hardliner vs conservative

hardliner and conservative both are nouns.

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

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

Other hypernyms of hardliner include conservativist.

hardliner (noun)	conservative (noun)
a conservative who is uncompromising	a person who is reluctant to accept changes and new ideas

hardliner (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