Enigma
01
謎, 神秘
the quality of being very challenging to explain or understand
例
She always had an air of mystery around her, making her an enigma to even her closest friends.
彼女は常に謎めいた雰囲気をまとっていて、最も親しい友人でさえも彼女を謎だと思っていた。
02
謎, 神秘
a puzzling or mysterious issue or situation
例
The reason for the sudden disappearance of the species remains an enigma to scientists.
種の突然の消滅の理由は、科学者にとってまだ謎のままです。
