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A British court finally decided he had been an unwitting accomplice in the affair, and let him go.

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Superman is not mortal, so he can?t be hurt by things that hurt other people.

We know that all men are mortal.

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Not done with purpose or intent, Not aware or knowing;

The young boxer received a mortal blow to the head, and died in the ring.

Smallpox had been an unwitting instrument of the Spanish conquest of America, too.

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mortal ;

unwitting ;

She gave an unwitting shake of her head, attempting to clear her suddenly.

1. deadly, lethal;