(a.) Worthy of being detested; abominable; extremely hateful; very odious; deserving abhorrence; as, detestable vices.

abhorrent abominable arrant atrocious awful base beastly below contempt beneath contempt blameworthy brutal contemptible crude deplorable despicable despiteful dire disgusting dreadful egregious enormous execrable fetid filthy flagrant forbidding foul fulsome grievous gross hateful heinous horrible horrid ignoble infamous lamentable loathsome lousy malodorous mephitic miasmal miasmic monstrous nasty nauseating nefarious noisome notorious noxious objectionable obnoxious obscene odious offensive outrageous pitiable pitiful rank rebarbative regrettable repellent reprehensible repugnant repulsive revolting rotten sad scandalous schlock scurvy shabby shameful shocking shoddy sickening sordid sorry squalid stinking terrible too bad unclean unlikable vile villainous woeful worst worthless wretched