enigma
Translation
mystery, puzzle, riddle
Examples
His disappearance remains an enigma.
His disappearance remains an enigma.
She is a complete enigma to me.
She is a complete enigma to me.
Grammar Patterns
((sb./sth.)) is an enigma ((to sb.)) (sb./sth.) is a mystery (to sb.) She is a complete enigma to me.
Similar Words
Synonyms: mystery, puzzle, riddle, conundrum
Etymology
From Greek 'ainigma' meaning 'riddle'.
Memory Tips
Think of the Enigma machine from WWII, a complex and mysterious code-making device.