Foul

The garbage truck emitted a foul odor as it passed by.

The foul rag that he used to clean the car only made it dirtier.

The car's engine started running foul, causing it to sputter and stall.

The angler carefully tied the foul to the fishing line.

The falconry enthusiast eagerly awaited the arrival of a new foul for her collection.

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