syllabic woes
  1. Enveloped
  2. Badminton
    When I was 19 someone finally told me that my parents were lying to me and Americans say BADminton, not badMINTon. It is the hardest syllable challenge I know.
  3. Cecil
    not a common one but Cecil isn't the same as Cecille, fyi
  4. 'Arch' in some contexts
  5. attribute
    Suggested by @julianna
  6. maintenance
    Suggested by @julianna