Frigid means very cold, or cold in manner. Frigid air, a frigid reception, frigid politeness.
Of temperature it is stronger than cold and belongs to writing rather than to speech — frigid conditions, the frigid north. Of manner it means unfriendly in a controlled way: a frigid welcome is polite and freezing. Note that a third sense, applied to women and meaning sexually unresponsive, is dated and was always more accusation than description; it is best left alone. Note frigidity, refrigerate.
1adjectivecoldVery cold.
“The air was frigid at about minus nine.”
2adjectivefrigidCold and unfriendly in manner.
“The two sisters greeted each other with a frigid nod and didn't speak all evening.”
frigid is a quality of coldness.
Latin frigidus comes from frigus, cold. Refrigerator and the French froid are the same cold, and the Frigid Zones were the old name for the polar regions.
Latin
frīgidus
English, today
frigid
Built from
Borrowed from Latin frīgidus. Latin frīgidus (“cold”), from frīgeō (“to be cold”), from frīgus (“cold, coldness”), from Proto-Indo-European sríHgos.
Etymology from Wiktionary, CC BY-SA
Practised in A Song of Ice and Fire