opposing progress; politically ultraconservative; illiberal
In the election, this candidate can expect to be supported by reactionary voters who approve of his opposition to immigration and social welfare spending.
re (back)#agere (to do, act) (Latin)
Reactionary is a person who REACTS to every big or small change. Reactionary - Actionary is to perform some action, but reactionary is to restrain/suppress the action i.e. to recoil the progress.