Loathsome(a.) Fitted to cause loathing; exciting disgust; disgusting.
Thesaurus Entries
abhorrent, abominable, arrant, atrocious, awful, base, beastly, below contempt, beneath contempt, blameworthy, brutal, contemptible, crude, deplorable, despicable, detestable, dire, disgusting, dreadful, egregious, enormous, execrable, fetid, filthy, flagrant, forbidding, foul, frightful, fulsome, ghastly, grievous, grisly, gross, gruesome, hateful, heinous, hideous, horrible, horrid, ignoble, infamous, invidious, lamentable, lousy, malodorous, mephitic, miasmal, miasmic, monstrous, nasty, nauseating, nefarious, noisome, notorious, noxious, objectionable, obnoxious, obscene, odious, offensive, outrageous, pitiable, pitiful, rank, rebarbative, regrettable, repellent, repelling, reprehensible, repugnant, repulsive, revolting, rotten, sad, scandalous, schlock, scurvy, shabby, shameful, shocking, shoddy, sickening, sordid, squalid, stinking, terrible, too bad, unclean, vile, villainous, woeful, worst, worthless, wretched