1. enigma - Noun
2. Enigma - Proper noun
A dark, obscure, or inexplicable saying; a riddle; a statement, the hidden meaning of which is to be discovered or guessed.
An action, mode of action, or thing, which cannot be satisfactorily explained; a puzzle; as, his conduct is an enigma.
Source: Webster's dictionaryI cannot forecast to you the action of Russia. It is a riddle wrapped in a mystery inside an enigma but perhaps there is a key. That key is Russian national interest. Winston Churchill
But now I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth. Umberto Eco
Russia is a riddle wrapped in a mystery inside an enigma. Winston Churchill
He makes me laugh, Mick! He tended to turn up when we were having lunch and entertain us all. He bought an Enigma machine! I've never worked with a producer who was more famous than everyone put together. Saffron Burrows
I have always knocked at the door of that wonderful and terrible enigma which is life. Eugenio Montale
There is a strange kind of tragic enigma associated with the problem of racism. No one, or almost no one, wishes to see themselves as racist; still racism persists, real and tenacious. Albert Memmi