Isn't it pretty much by definition (social) conservative?
> Conservatism is a cultural, social, and political philosophy that seeks to promote and to preserve traditional social institutions and practices
> In political science, a reactionary or a reactionist is a person who holds political views that favour a return to the status quo ante, the previous political state of society, which that person believes possessed positive characteristics absent from contemporary society
> Progressivism is a way of thinking that holds that it is possible through political action for human societies to improve over time. As a political movement, progressivism purports to advance the human condition through social reform based on advancements in science, technology, economic development and social organization
You might disagree with the changes being made, but (social) progressives believe they're making them for the betterment of humans. (Social) conservatives want to stop them, (social) reactionaries want to go back to "the good old times" where the woman kept the house etc.
It's pretty much textbook definitions.