There are numerous synonyms for the word stuffy. Some of the most common words that can be used instead of stuffy include airless, stuffily, oppressive, suffocating, and stifling. However, these words all share a similar meaning and can be used interchangeably depending on the context of the sentence. Other synonyms for stuffy that are less commonly used but can still be utilized include cramped, enclosed, narrow, and confined. In summary, there are various synonyms available for the word stuffy that can be used to add variety and precision to your writing.