molten

blazing, glowing, igneous, seething, sizzling

ardent, boiling, broiling, burning, fervent, fervid, fiery, hot, piping hot, red, red-hot, roasting, scalding, scorching, searing, sultry, superheated, sweltering, torrid, ultrahot, white-hot

heated, overheated, reheated, warmed

snug, toasty, warm, warmish

feverish, flushed, inflamed (also enflamed)

canicular, muggy, steamy, summerlike, summery, tropical