Swelt is a term that describes a feeling of intense heat or heat exhaustion. There are several synonyms for the word swelt, including broiling, roasting, scorching, and searing. These terms are commonly used when describing high temperatures or weather conditions that can cause discomfort or danger. Other synonyms of swelt include stifling, oppressive, steamy, and sultry, which reflect the feeling of being trapped in an excessively hot environment. Whether you're dealing with the heat of summer or the heat of an intense workout, using these synonyms can help you express the intensity of the heat you're experiencing.