Something that is hard to understand or explain
The mystery of the missing painting has puzzled everyone for years.
A person or thing that is strange and interesting because you don't know much about them
Her past is a complete mystery to all her friends.
The quality of being hard to understand, which makes something interesting
The old castle has an air of mystery that attracts many visitors.
A story, movie, or play where crimes and strange events are explained at the end
She loves reading mystery novels before going to bed.
Secret religious ceremonies or knowledge
The ancient mystery of the rituals was passed down through generations.
A religious belief that cannot be explained by science
The mystery of life's beginning remains a topic of deep thought.