1. Very cold in temperature: "The frigidness of the climate was not what we expected on our trip."
2. Without warmth of feeling; without ardor or enthusiasm: "There was a frigidness in the reaction to the suggested new law."
3. Stiff or formal: "The welcome that we received was polite but had some frigidness, too."
4. Unemotional or unimaginative; lacking passion, sympathy, or sensitivity.