List of terrible synonyms and terrible related words.
aberrant, abnormal, abominable, acute, alarming, appalling, arduous, arrant, ashamed, astounding, atrocious, awe-inspiring, awesome, awful, bad, baneful, base, beastly, beneath contempt, blameworthy, brutal, concentrated, conscience-stricken, contemptible, contrite, criminal, deadly, delinquent, deplorable, desperate, despicable, detestable, deviant, difficult, dire, direful, disagreeable, disgraceful, disgusting, distressed, distressing, dread, dreaded, dreadful, egregious, enormous, evil, exquisite, fearful, fearsome, fell, fetid, fierce, filthy, flagrant, forbidding, formidable, foul, frightening, frightful, fulsome, furious, ghastly, ghoulish, gory, grave, grievous, grim, grisly, gross, grotesque, gruesome, guilty, hardly the thing, harrowing, hateful, heavy, heinous, hideous, horrendous, horrible, horrid, horrific, horrifying, howling, ignominious, illegal, improper, inappropriate, incorrect, indecorous, infamous, intolerable, joyless, laborious, lamentable, loathsome, lousy, macabre, mephitic, miserable, monstrous, morbid, nasty, nauseating, nauseous, nefarious, noisome, not done, not the thing, notorious, noxious, obnoxious, odious, off-base, off-color, offensive, out-of-line, outrageous, pitiable, pitiful, rank, redoubtable, regretful, regrettable, remorseful, repelling, reprehensible, repugnant, repulsive, revolting, rotten, rousing, rueful, sacrilegious, sad, savage, scandalous, schlock, schrecklich, scurvy, serious, severe, shabby, shameful, shameless, shocking, shoddy, sinful, sordid, sorry, squalid, strenuous, terrible, terrific, terrifying, thumping, toilsome, too bad, tough, tragic, tremendous, unbearable, unclean, undue, unfit, unfitting, unfortunate, unhappy, unlawful, unpleasant, unrighteous, unseemly, unspeakable, unsuitable, vehement, vicious, vile, villainous, violent, whacking, wicked, woeful, worst, worthless, wretched, wrong, wrongful