6 entries under frigid topic. ×

12
arctic(adjective, cool, severe, keen, sharp)
9
glacial(adjective, cool, severe, keen, sharp)
8
freezing(adjective, cool, intense, cold, hot)
8
icy(adjective, cool, severe, keen, sharp)
7
frosty(adjective, cool, severe, keen, sharp)
7
polar(adjective, adverb, cool, severe, keen)
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APASmart Define. (2015). boreal thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/boreal/thesaurus/synonyms
ChicagoSmart Define. 2015. "boreal thesaurus" https://smartdefine.org/boreal/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, boreal thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/boreal/thesaurus/synonyms>.
MLASmart Define. "boreal thesaurus" 7 July 2015. Web. 26 September 2026. <https://smartdefine.org/boreal/thesaurus/synonyms>