Being sickening is a negative term that refers to something that is unpleasant or intolerable. There are several antonyms, or opposite words, that can be used to describe the opposite of being sickening. Some of the popular antonyms for being sickening include delightful, charming, pleasant, enjoyable, and satisfying. These words are used to describe something that is pleasurable or attractive in some way. For instance, when we talk about a delightful meal, we are referring to something that tastes good or is enjoyable to eat. Similarly, when we talk about a charming person, we are referring to someone who is pleasing or attractive in their character or behavior.