Hot waves are a common aspect of summers all over the world. If you are looking for synonyms for this term, you can use words such as heat waves, sweltering heat, scorching heat, searing temperatures, oppressive heat, blistering temperatures, and intense heat. Other words that you can use to describe hot waves include inferno, scorcher, sizzling, torrid, fiery, and roasting. The use of these synonyms will help you to convey the intensity and discomfort associated with hot waves. Regardless of the word you choose, one thing remains clear - hot waves can be dangerous and should be taken seriously.