chilliness vs iciness

chilliness and iciness both are nouns.

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

As nouns, chilliness and iciness are synonyms defined as:

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

chilliness (noun)	iciness (noun)
the property of being moderately cold	coldness due to a cold environment
a lack of affection or enthusiasm	a lack of affection or enthusiasm