What's the Connection Between Silence and Temperature?

Chillingly means unsettling. It makes you feel uncomfortable or scary. We commonly use it negatively, because we cana sort of exaggerate the severity or the drama of something. Chillingly silent, frighteningly quiet. So this is a two word expression. First word, chillingly, c h i l i n g l y. Second word, silent, s i l e tea.