conservative vs middle-class

conservative is a noun but middle-class is not a noun.

Word	Noun	Adjective	Verb	Adverb
conservative	Yes	Yes	No	No
middle-class	No	Yes	No	No

conservative (noun)	middle-class (noun)
a person who is reluctant to accept changes and new ideas

conservative (adjective)	middle-class (adjective)
resistant to change, particularly in relation to politics or religion	occupying a socioeconomic position intermediate between those of the lower classes and the wealthy
unimaginatively conventional
conforming to the standards and conventions of the middle class
avoiding excess
having social or political views favoring conservatism