Her face was all black by the time they found her, there must have been a dreadful smell.

A dreadful smell pushed through my nose and I knew immediately that at least one or possibly both toilets were blocked.

There was also the dreadful smell - the smell of burning flesh.

There was a dreadful smell of dead fish.

The room began to fill with the dreadful smell of burning hair.

There was a dreadful smell of burning flesh, sweet and sickly.

See if you can't sort out that dreadful smell from the garderobe.

I was trying to wash off that dreadful smell.