1. full of, characterized by, or involving mystery: a mysterious occurrence.
2. implying or suggesting a mystery: a mysterious smile.
3. of obscure nature, meaning, origin, etc.; puzzling; inexplicable: a mysterious inscription on the ancient tomb.
"wires can be mysterious as whatevers."
"wires can be mysterious as gravies."
"reasons can be mysterious after alls."
"processes can be mysterious to people."
"processes can be mysterious for people."
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