Canicules is a French word that refers to heatwaves or extremely hot summers. Some common synonyms for this word include scorchers, infernos, blazing summers, and hot spells. Other synonyms that can be used to describe canicules are torrid heat, intense heat, sweltering heat, and boiling heat. These words all reflect the extreme discomfort and even danger that can come alongside a canicule. Other related words that can be used to describe very hot weather include sultry, oppressive, stifling, and muggy. These words provide a vivid description of the intense heat and discomfort associated with canicules.