Choose the perfect synonym or antonym for the word Something that is not known or understood, which causes curiosity or wonder.
Mystery
/ˈmɪst(ə)ri/Synonyms:
Antonyms:
Examples:
The lost key was always a big mystery.Solving the mystery took all night and lots of work.
Etymology:
The term mystery originates from the Old French mistere and Medieval Latin mysterium, derived from the Greek mystērion, meaning secret rite or secret.
Usage Statistics:
35 mentions per 1 million words 
Hint: Frequency according to COCA
Often
Hint: Frequency according to COCA
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