loathsome

causing or able to cause nausea

• “a nauseating smell”
• “nauseous offal”
• “a sickening stench”

highly offensive; arousing aversion or disgust

• “a disgusting smell”
• “distasteful language”
• “a loathsome disease”
• “the idea of eating meat is repellent to me”
• “revolting food”
• “a wicked stench”