Definitions

1. noun

a difficult problem to solve or understand, especially one that is not clear or not intended to be revealed; a secret or mysterious situation.

“The detective was determined to solve the mystery of the missing treasure.”

2. noun

a quality of being mysterious or unclear, especially in a way that is intriguing or fascinating.

“The misty forest had an air of mystery that added to its allure.”

3. verb

to make something mysterious or unclear.

“The magician mystified the audience with his illusions.”