Suddenly, only about the length of a cricket pitch from their port side, an appalling head reared itself out of the sea.
Then she made a dash for the cabin door and got in and shut out for a moment the appalling sight of the speed with which they were rushing into the dark, but not of course the horrible confusion of creakings, groanings, snappings, clatterings, roarings and boomings which only sounded more alarming below than they had done on the poop.
There are no more uses of "appalling" in the book.
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The live in appalling conditions.
She has scheduled a news conference to respond to the appalling accusations.