Choose the perfect synonym or antonym for the word Something that is difficult to understand, explain, or identify because it is secretive or unknown.
Mysterious
/mɪˈstɪəriəs/Synonyms:
Antonyms:
Examples:
"God moves in a mysterious way," he responded.
It was the mysterious Mr Porrott.
Second, there was the mysterious stranger who had saved his life.
Etymology:
The word "mysterious" traces its roots to the late Middle English period, derived from the Latin "mystēriōsus," which means "full of mystery." It is related to mystery, from the Greek "mystērion," denoting a secret or something not revealed.
Usage Statistics:
16 mentions per 1 million words 
Hint: Frequency according to COCA
Moderate
Hint: Frequency according to COCA
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