befoul

And, inevitably, that serial killer himself soon arrives in town, thus befouling Isaiah’s refuge.

Adolf Hitler, despite being the most evil force ever to befoul mankind, was also a kind and conscientious employer.

Self-consciousness compels such creatures to befoul their origin.

He, the officer, must befoul his person and derange his hours of rest and recreation, that others may enjoy.

Why, I would rather lose the power of speech for ever than befoul your ears with the record of my shame.

The fumes of tobacco befoul the air around, and public health suffers in consequence.

I could not prevent myself from saying, "Do you think it is nice to befoul your own nest?"