彩饰 (cǎi shì) literally combines 彩 (cǎi), meaning 'color' or 'brilliance', and 饰 (shì), meaning 'decoration' or 'ornament'. Together, it refers to colorful, eye-catching decorative elements—often applied to surfaces, clothing, or objects to enhance visual appeal. It emphasizes vibrancy and aesthetic embellishment rather than functional purpose.

This term is commonly used in contexts involving traditional crafts, festival preparations, animal appearances (e.g., birds with vivid plumage), or cultural performances. While 彩饰 can describe human-made decorations like painted patterns on pottery or festive banners, it’s especially frequent when describing naturally occurring bright markings—such as the iridescent feathers of peacocks or kingfishers, where ‘colorful decoration’ evokes both artistry and biological splendor. It carries a slightly literary or descriptive tone, often appearing in nature writing, art criticism, or zoological descriptions.