<p><strong>Adjective</strong></p><ul><li>horrible or frightful to the senses; repulsive; very ugly: a hideous monster.</li><li>shocking or revolting to the moral sense: a hideous crime.</li><li>distressing; appalling: the hideous expense of moving one's home to another city.</li></ul><p><strong>Synonyms</strong></p><ul><li>ghastly, appalling, dreadful, monstrous, odious, detestable, repellent, grim, grisly</li></ul><p><strong>Antonyms</strong></p><ul><li>attractive, pleasing</li></ul>