If an unlucky accident should befall him, if he should be shot by a police officer, or if he should hang himself in his jail cell, or if he's struck by a bolt of lightning, The Godfather (1972)
a. 1. Not lucky; not successful; unfortunate; ill-fated; unhappy; as, an unlucky man; an unlucky adventure; an unlucky throw of dice; an unlucky game. [ 1913 Webster ]
☞ This word is properly applied to incidents in which failure results from chance or fortuity, as in games of hazard, rather than from lack or feebleness of effort. [ 1913 Webster ]
2. Bringing bad luck; ill-omened; inauspicious. [ 1913 Webster ]
Haunt me not with that unlucky face. Dryden. [ 1913 Webster ]