chill vs frigidness

chill and frigidness both are nouns.

Word	Noun	Adjective	Verb	Adverb
chill	Yes	No	Yes	No
frigidness	Yes	No	No	No

As nouns, frigidness is a hypernym of chill; that is, frigidness is a word with a broader meaning than chill:

Other hypernyms of chill include cold, coldness, frigidity, low temperature.

chill (noun)	frigidness (noun)
coldness due to a cold environment	a lack of affection or enthusiasm
a sudden numbing dread	sexual unresponsiveness (especially of women) and inability to achieve orgasm during intercourse
an almost pleasurable sensation of fright	the absence of heat
a sensation of cold that often marks the start of an infection and the development of a fever