# An extreme conservative; an opponent of progress or liberalism
wordnetweb.princeton.edu/perl/webwn

# Reactionary (also reactionist) refers to any political or social movement or ideology that seeks a return to a previous state (the status quo ante). ...
en.wikipedia.org/wiki/Reactionary

# One who is opposed to change; One who is very conservative; Opposed to change; urging a return to a previous state; Very conservative
en.wiktionary.org/wiki/reactionary