1. the quality or state of being cold or cool in temperature
2. a distant, unfriendly, or unwelcoming quality in manner or atmosphere

Examples

• The chilliness of the morning air made her pull her jacket tighter.
• There was a noticeable chilliness between the two former friends.
• The chilliness in the room seemed to drop several degrees after the argument.
• Despite her smile, there was an underlying chilliness in her tone.
• The chilliness of the water made swimming uncomfortable.
• He detected a chilliness in her response to his invitation.