1. difficult or impossible to understand; confusing or puzzling

Examples

• The magician’s mystifying tricks left the audience wondering how they were done.
• Her sudden change in behavior was mystifying to her friends.
• The professor’s mystifying explanation only made the concept more confusing.
• The detective found the crime scene mystifying with no clear evidence.
• It’s mystifying how he manages to arrive late every single day.
• The mystifying disappearance of the documents puzzled everyone in the office.