- 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.
Meaning of 'enigma' (Princeton's WordNet)
1 . enigma
[ n]
Meaning (1): - something that baffles understanding and cannot be explained