Synonyms of glacial

1 Syllable
hoar, raw, cool, cold, chill
2 Syllables
frost-bound, frosty, frigid, biting, nippy, polar, arctic, algid, frore, gelid, icy, rimy, sleety, frostier, freezing, colder, coldest, wintry, chiller, chilly, chillier, piercing, iciest, frozen, bitter, boreal, chilliest, icier
3 Syllables
subzero, icicled, algific, antarctic, ice-cold, sub-zero, siberian, ungenial
4 Syllables
frigorific, hyperboreal, emotionless
5 Syllables
unemotional, nonemotional