Code smell refers to a type of code that is poorly designed, difficult to read or understand, and potentially harmful to the software application. The antonyms, or opposites, of code smell can be a variety of things. These include clear, concise, well-structured, easy-to-read, and maintainable. Such code is designed to be accessible to everyone in the development team and avoid confusing syntax, unnecessary complexity, or unnecessary repetition. Well-designed code is also typically well-commented, with each component of the code serving an obvious and essential purpose. It's also often modular, meaning that it is divided into smaller chunks that can be tested and maintained more efficiently. In short, the antonyms for code smell refer to code that is clean, straightforward, and easy to understand.