Synonyms and related words :
ardent, baking, blistering, boiling, broiling, burning, burning hot, canicular, clammy, close, ebullient, feverish, fiery, flushed, grilling, heated, hot, hot as fire, hot as hell, humid, like a furnace, like an oven, melting, muggy, oppressive, overheated, overwarm, parching, piping hot, red-hot, roasting, scalding, scorching, searing, seething, simmering, sizzling, sizzling hot, smoking hot, steaming, steamy, sticky, stifling, stuffy, sudorific, suffocating, sultry, sweating, sweaty, sweltry, toasting, torrid, tropical, wet, white-hot, wilting