frigidity vs chilliness

frigidity and chilliness both are nouns.

Word	Noun	Adjective	Verb	Adverb
frigidity	Yes	No	No	No
chilliness	Yes	No	No	No

As nouns, frigidity and chilliness are synonyms defined as:

Other synonyms of frigidity include coldness, coolness, frigidness, iciness.

As nouns, chilliness is a hyponym of frigidity; that is, chilliness is a word with a more specific, narrower meaning than frigidity:

Other hyponyms of frigidity include chill, gelidity, iciness, coolness, nip, frostiness, cool.

frigidity (noun)	chilliness (noun)
a lack of affection or enthusiasm	the property of being moderately cold
sexual unresponsiveness (especially of women) and inability to achieve orgasm during intercourse	a lack of affection or enthusiasm
the absence of heat