sweltering

having a notably high temperature the air conditioning was broken, and it was sweltering in the office Synonyms ardent, boiling, broiling, burning, fervent, fervid, fiery, piping hot, red, red-hot, roasting, scalding, scorching, searing, sultry, superheated, hot, torrid, ultrahot, white-hotRelated Words blazing, glowing, igneous, molten, seething, sizzling; heated, overheated, reheated, warmed; snug, toasty, warm, warmish; feverish, flushed, inflamed (also enflamed); canicular, muggy, steamy, summerlike, summery, tropicalNear Antonyms chill, chilly, coldish, cool, coolish, nippy, snappy; blizzardly, frosty, snowy, subfreezing, subzero, wintry (also wintery); chilled, cooled, refrigerated, unheated; benumbed, numb, shiveringAntonyms algid, arctic, bitter, bone-chilling, cold, freezing, frigid, frozen, glacial, ice-cold, iced, icy