obscurantism /ɑbˈskjɚrənˌtɪzəm/ noun Learner's definition of OBSCURANTISM
[noncount] formal
: the practice of keeping knowledge or understanding about something from people : the policy of not letting people know something蒙昧主义；愚民政策
— obscurantist
/ɑbˈskjɚrəntɪst/ adjective