ob·scu·ran·tism 
/ɑbˈskjɚrənˌtɪzəm/ noun
/ɑbˈskjɚrənˌtɪzəm/ noun [noncount] formal : the practice of keeping knowledge or understanding about something from people : the policy of not letting people know something
▪ secrecy and political obscurantism
▪ secrecy and political obscurantism
— ob·scu·rant·ist /ɑbˈskjɚrəntɪst/ adjective
▪ obscurantist art
▪ obscurantist art
