SYNONYMS
revolting, disgusting, abhorrent, repellent, repugnant, offensive, objectionable, vile, foul, nasty, loathsome, sickening, nauseating, stomach-churning, stomach-turning, hateful, detestable, execrable, abominable, monstrous, appalling, reprehensible, deplorable, insufferable, intolerable, despicable, contemptible, beyond the pale, unspeakable, noxious, horrendous, heinous, atrocious, awful, terrible, dreadful, frightful, obnoxious, unsavoury, unpleasant, disagreeable, distasteful, dislikeable, off-putting, uninviting, displeasing
ugly, as ugly as sin, hideous, grotesque, gruesome, unsightly, reptilian
North American vomitous
informal ghastly, horrible, horrid, godawful, gross, putrid, sick-making, sick, yucky, icky, fugly
British informal beastly
Northern Irish informal bogging
North American informal skanky
New Zealand informal huckery
literary noisome
archaic disgustful, scurvy, loathly
rare rebarbative