Most bedecked means something that is heavily adorned or embellished. The antonyms for this word could be minimal, unadorned, plain, simple, or understated. These words signify a lack of decoration or ornamentation. For example, a minimalist design would contain simple, clean lines with very few embellishments, while an understated outfit might consist of neutral colors and minimal jewelry. The antonyms for most bedecked could also include words like unembellished, undecorated, unornamented, and unembroidered. These words all suggest a plain or unadorned appearance, without any additional decorative elements.