1. Causing or able to cause nausea
   "the sickening flight had bad turbulence";
   - nauseating, nauseous, queasy, vomitous [US]
    
2. Highly offensive; arousing aversion or disgust
   "the town's sickening smell was from the factory nearby";
   - disgusting, disgustful [archaic], foul, loathly [literary], loathsome, repellent, repellant, revolting, wicked, yucky [informal], gross-out [informal], loathful [archaic], yukky [informal], nauseating, vile
    
3. Morally repugnant or distasteful; causing disgust or strong disapproval
   "he made a sickening joke about the tragedy";
   - unsavory [US], unsavoury [Brit, Cdn], offensive, sick, nauseating, loathsome

1. Get sick
   "He sickened with the flu just before his vacation";
   - come down
    
2. Make sick or ill
   "This kind of food sickens me"
    
3. Cause feelings of nausea or disgust
   "The mould on the food sickened the diners";
   - nauseate, turn one's stomach
    
4. Cause aversion in; offend the moral sense of
   "The pornographic pictures sickened us";
   - disgust, revolt, nauseate

See also: abhorrent, absonant [archaic], despicable, detestable, distasteful, gut-wrenching, obscene, offensive, repugnant, repulsive, slimy, ugly, unsavory [US], unsavoury [Brit, Cdn], unwholesome, unworthy, vile, worthless, wretched

Type of: decline, disgust, gross out [informal], harm, repel, repulse, revolt, worsen

Encyclopedia: Sicken