great mystery

Examples (10)

• How the disease started is one of medicine's great mysteries.
• It was easy to believe that the house held some great mystery.
• The origin of the universe remains a great mystery to scientists.
• Her sudden disappearance became a great mystery for the entire town.
• Unlocking the secrets of the ancient civilization was a great mystery for archaeologists.
• The Bermuda Triangle is known for its great mysteries and unexplained phenomena.
• Solving the crime was a great mystery that baffled detectives for years.
• The workings of the human mind are still a great mystery.
• The universe is full of great mysteries waiting to be discovered.
• For many, faith provides answers to life's great mysteries.