conservativism vs ideology

conservativism and ideology both are nouns.

Word	Noun	Adjective	Verb	Adverb
conservativism	Yes	No	No	No
ideology	Yes	No	No	No

As nouns, ideology is a hypernym of conservativism; that is, ideology is a word with a broader meaning than conservativism:

conservativism: a political or theological orientation advocating the preservation of the best in society and opposing radical changes
ideology: an orientation that characterizes the thinking of a group or nation

Other hypernyms of conservativism include political orientation, political theory.

conservativism (noun)	ideology (noun)
a political or theological orientation advocating the preservation of the best in society and opposing radical changes	an orientation that characterizes the thinking of a group or nation
	imaginary or visionary theorization