chalky \ˈchȯkē, -ki\adjective (often-er/-est) 1.: consisting of, abounding in, or characterized by chalk : cretaceous < chalky soil > 2.: having the consistency of chalk : powdery < chalky bread > 3. a.: having the color of chalk < a chalky complexion > b.photography: having excessive contrast and lacking detail in the highlights < chalky prints > — compare contrasty