Siberian
algid
arctic
below zero
biting
bitter
bitterly cold
bleak
boreal
brisk
brumal
cold
cold as charity
cold as death
cold as ice
cold as marble
crisp
cutting
freezing
freezing cold
frigid
gelid
glacial
hibernal
hiemal
hyperborean
ice-cold
ice-encrusted
icelike
icy
inclement
keen
nipping
nippy
numbing
penetrating
piercing
pinching
raw
rigorous
severe
sharp
sleety
slushy
snappy
stone-cold
supercooled
winterbound
winterlike
wintery
Acholi
East Coast
Mme.
hand-cranked
liquid-nitrogen
martensite
self-correcting
sub-zero
thousand-yard
two-door
ultra-low
ultrahigh
weather-control
Hero
Hiro
Nero
Shapiro
biro
hero
superhero
zero