—adj. 1. mildly cold or producing a sensation of cold; causing shivering; chill: a chilly breeze. 2. feeling cold; sensitive to cold: Her hands were chilly. 3. without warmth of feeling; cool: a chilly reply. 4. producing or likely to produce a feeling of fear; frightening: He told a chilly story of ghosts and murder.
—adv. Also,chill'i•ly.in a chill manner: The wind blew chilly.