conservative vs nonprogressive

conservative is a noun but nonprogressive is not a noun.

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

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

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resistant to change, particularly in relation to politics or religion	old-fashioned and out of date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