mysteriously
🇺🇸
/mɪˈstɪriəsli/
🇬🇧
/mɪˈstɪəriəsli/
in a way that is hard to explain or understand
The lights went out mysteriously during the storm.
in a strange and interesting way
The garden looked mysteriously beautiful in the moonlight.
without giving much information, making others curious
He smiled mysteriously and said nothing.