81 synonyms for ugly such as despicable, as plain as a pikestaff, alarming, appalling, and base. Ugly is an adjective, and its antonyms are beautiful and attractive.
As plain as a pikestaff, as ugly as sin, awful, deformed, disagreeable, disfigured, disgusting, displeasing, foul, frightful, fugly, ghastly, grim, grisly, grotesque, gruesome, hideous, homely, horrible, huckery, ill-favoured, misshapen, monstrous, nasty, no oil painting, not much to look at, plain, plain-featured, plain-looking, repellent, reptilian, repugnant, revolting, shocking, short on looks, unattractive, unlovely, unpleasant, unprepossessing, unsightly, and vile.
Alarming, charged, dangerous, direful, disagreeable, grave, hostile, menacing, minacious, nasty, ominous, perilous, serious, sinister, tense, threatening, and unpleasant.
Appalling, base, despicable, disagreeable, dishonest, dishonourable, evil, foul, horrible, horrid, malevolent, nasty, objectionable, obnoxious, offensive, reprehensible, rotten, spiteful, unpleasant, vicious, vile, and wicked.