enigma

謎、不可解な人

理解したり説明したりするのが難しい人や物事。

やさしい英語で： A person or thing that is difficult to understand or explain.

• Her brother is an enigma.
• The animal's sudden disappearance remains an enigma.
• After twenty years, he was still an enigma to his neighbours.

使い方： an enigma to someone (His behaviour remains an enigma to me.)

類義語： mystery, puzzle

よく使う表現： remain an enigma, a complete enigma, something of an enigma

謎解き、難問

答えを見つける必要がある謎や難しい問題。

やさしい英語で： A riddle or difficult problem that needs an answer.

• Can you solve this enigma?
• The old book contains several mathematical enigmas.
• One final clue helped us answer the enigma.

類義語： riddle, puzzle, problem

よく使う表現： solve an enigma, pose an enigma, a difficult enigma