>>7208192reactionary means anyone who openly sympathizes or identifies with ideologies or movements that stand as an antithesis to socialism and to maintain the status quo, or implement reforms instead.
reactionaries are not interested in expanding workers' autonomy, but trying to implement deregulation to make exploitation more miserable, or implement social democratic reforms to make exploitation more inconspicuous, rather than allow the thesis or proposal of expansion of workers' rights progress.
if you oppose socialism, then what can you be if not reactionary?