foul

Since the mid-1980s, when Indonesia first began to clear its bountiful forests on an industrial scale in favour of lucrative palm-oil plantations, “haze” has become an almost annual occurrence in South-East Asia. The cheapest way to clear logged woodland is to burn it, producing an acrid cloud of foul white smoke that, carried by the wind, can cover hundreds, or even thousands, of square miles.

The rascal spewed forth a series of foul words.

He has a foul set of friends.

This foul food is making me retch.

Let us, like merchants, show our foulest wares.

Some foul weather is brewing.

Foul play is not suspected.

We've got a foul anchor.

The bus had stopped just foul of the north track at the Erindale Station Road public railway crossing […] With the bus stationary, but still foul of the north track, the train struck one of its front mirrors.

Jones hit foul ball after foul ball.