In the book A Wagner Matinee by Willa Cather

If you think of Wagner as the composer of operas featuring large blonds wearing helmets with horns sticking out of them, you might_______that his music is not relevant to your life. Use one of the following words to fill in the blank. callow, conjecture, excruciatingly, inexplicable, pathetic, pious, reproach, sordid, superficially and trepidation.