abstrusity

/æbˈstruːsəti/
noun
  1. The quality of being difficult to understand; obscurity.
    • The philosopher's writing is known for its abstrusity and complex ideas.
    • Many readers were frustrated by the abstrusity of the novel's plot.
    • The abstrusity of the professor's lecture left most students confused.
  2. Something that is hard to comprehend; an obscure or difficult idea or statement.
    • The textbook was full of abstrusities that required a teacher's explanation.
    • The article contained several abstrusities that even experts debated.
    • He tried to simplify the abstrusities of quantum mechanics for the class.
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