Foul

The falconer used a leather glove to handle the foul during hunting expeditions.

The foul water in the pond was not suitable for swimming.

The foul air inside the factory required employees to wear masks.

The foul smog over the city obscured the stars at night.

The fisherman cast his foul into the water and waited patiently for a bite.

The foul smoke from the burning forest obscured the sun and created a gloomy atmosphere.