horrible

A thing that causes horror; a terrifying thing, particularly a prospective bad consequence asserted as likely to result from an act.

Here's a carcase. I know not all that may be coming, but be it what it will, I'll go to it laughing. Such a waggish leering as lurks in all your horribles!

A lot of the possible horribles conjured up by the people objecting to this convention ignore the plain language of this treaty.

A person wearing a comic or grotesque costume in a parade of horribles.

Causing horror; terrible; shocking.

Such a scandal as the prosecution of a brother for forgery—with a verdict of guilty—is a most truly horrible, deplorable, fatal thing. It takes the respectability out of a family perhaps at a critical moment, when the family is just assuming the robes of respectability: […] it is a black spot which all the soaps ever advertised could never wash off.

Strangers fainted dead away at the sight of the Laughing Man's horrible face. Acquaintances shunned him.

Tremendously bad.

Having now absorbed all or parts of 750 responses to my complaints about Transformers, I suppose I shouldn't be surprised that most of those writing agree with me that it is a horrible movie.