Having a high temperature
torrid, burning, fiery, flaming, blazing, very warm, feverish, baking, roasting, smoking, scorching, blistering, searing, sizzling, tropical, warm, calescent, broiling, igneous, red-hot, grilling, piping-hot, white-hot, scalding, parching, sultry, on fire, at high temperature, incandescent, ovenlike, smoldering, thermal, calid, toasting, simmering, thermogenic, recalescent, decalescent, blazing hot*, boiling hot*, like an oven*, hotter than blazes*; see also boiling, cooking 1, heated 1, molten.
Antonyms cold*, frigid, chilly.