obscurantism
From Longman Dictionary of Contemporary Englishobscurantismob‧scu‧ran‧tis‧m /ˌɒbskjəˈræntɪzəm $ ˌɑːb-/ noun [uncountable] formal CLEAR/EASY TO UNDERSTANDthe practice of deliberately stopping ideas and facts from being known —obscurantist adjectiveExamples from the Corpusobscurantism• But it has the disadvantage of confusion and obscurantism.• Hitherto this has led to some allegations in the Press about Whitehall obscurantism but little interest or pressure in Parliament itself.