Foul

The hiker lost his way in the foul mist that enveloped the mountains.

The foul stench emanating from the garbage bin was unbearable.

The hikers lost their way in the foul mist of the dense forest.

The foul air inside the abandoned building was thick with dust and decay.

The foul smell of rotten eggs filled the kitchen.

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