2
penetrating(adjective, cool, severe, keen, sharp)
2
piercing(adjective, cool, severe, keen, sharp)
2
raw(adjective, cool, severe, keen, sharp)
2
septentrional
2
severe(adjective, cool, keen, sharp, intense)
2
sharp(adjective, cool, severe, keen, intense)
2
sleety(adjective, cool, severe, keen, sharp)
2
snappy(adjective, cool, severe, keen, sharp)
2
wind
1
aeolian
1
aestival
1
air current
1
airish
1
airy
1
austral
1
autumn
1
autumnal
1
below freezing(expression, cool, severe, keen, sharp)
1
benumbed(adjective, cool, severe, keen, sharp)
1
bitterly cold
11 years ago|3.1k views|share |citing 
APASmart Define. (2015). boreal thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/boreal/thesaurus/synonyms
ChicagoSmart Define. 2015. "boreal thesaurus" https://smartdefine.org/boreal/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, boreal thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/boreal/thesaurus/synonyms>.
MLASmart Define. "boreal thesaurus" 7 July 2015. Web. 24 September 2026. <https://smartdefine.org/boreal/thesaurus/synonyms>