cautious vs conservative

cautious and conservative both are nouns.

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

As adjectives, cautious and conservative are synonyms defined as:

cautious (noun)	conservative (noun)
people who are fearful and cautious	a person who is reluctant to accept changes and new ideas

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