As nouns the difference between chilliness and hilliness
is that chilliness is the state or sensation of being chilly; a disagreeable sensation of coldness while hilliness is the property of being hilly or having hills.
chilliness
English
Noun
(-)
The state or sensation of being chilly; a disagreeable sensation of coldness.
References
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hilliness
English
Noun
(-)
The property of being hilly or having hills.