Sickening

a.

1.

Causing sickness; specif., causing surfeit or disgust; nauseating.

Adj.

1.

sickening - causing or able to cause nausea; "a nauseating smell"; "nauseous offal"; "a sickening stench" Synonyms: loathsome, nauseating, nauseous, noisome, vile, offensive

abhorrent, abominable, bad, barfy, base, beastly, below contempt, beneath contempt, brackish, cloying, contemptible, crude, despicable, detestable, disgusting, execrable, fetid, forbidding, foul, fulsome, gross, hateful, heinous, high, icky, ignoble, loathsome, maggoty, malodorous, mawkish, mephitic, miasmal, miasmic, nasty, nauseant, nauseating, nauseous, noisome, noxious, objectionable, obnoxious, obscene, odious, offensive, overripe, poisonous, rancid, rank, rebarbative, repellent, repugnant, repulsive, revolting, rotten, spoiled, stinking, vile, vomity, weevily, yucky