obfuscation
noun
[ ɒbfʌsˈkeɪʃ(ə)n ]
• the action of making something obscure, unclear, or unintelligible.
• "when confronted with sharp questions they resort to obfuscation"
Origin:
late Middle English: from late Latin obfuscatio(n-), from obfuscare ‘to darken or obscure’ (see obfuscate).