polar

1 being as different as possible they're friends despite their polar positions on a number of issues Synonyms antipodal, antipodean, antithetical, contradictory, contrary, diametric (or diametrical), oppositeRelated Words adverse, negative, unfavorable; antagonistic, antipathetic, counter, cross, hostile; converse, inverse, obverse, reverse; alien, disparate, dissimilar, divergent, unalike, unlikeNear Antonyms alike, analogous, like, similar; equivalent, identical, same; synonymousAntonyms noncontradictory

2 having a low or subnormal temperature a polar air mass seemed to have settled over our area in January Synonyms algid, arctic, bitter, bone-chilling, chill, chilly, coldish, cool, coolish, freezing, frigid, frosty, gelid, glacial, ice-cold, icy, nipping, nippy, numbing, cold, shivery, snappy, wintry (also wintery)Related Words cryogenic, subfreezing, subzero, ultracold; cutting, keen, penetrating, piercing, sharp; bracing, brisk, crisp, invigorating, rigorous; chilled, cooled, frosted, frozen, iced, refrigerated, unheatedNear Antonyms lukewarm, tepid; heated, overheated, reheated, warmed; snug, toasty, warm; feverish, flushed, inflamed (also enflamed); canicular, equatorial, muggy, steamy, summery, tropicalAntonyms ardent, blazing, boiling, broiling, burning, fervent, fervid, fiery, glowing, hot, igneous, molten, piping hot, red-hot, roasting, scalding, scorching, searing, seething, sizzling, sultry, sweltering, torrid, ultrahot, warming, white-hot