The antonyms for the word "more silvery" are numerous, ranging from dull, murky and drab to dark, matte and opaque. While silver is typically associated with brightness and shine, its opposite qualities can be useful when describing less reflective, less glittery objects. For example, a cloudy sky may be described as less silvery than a clear blue sky, while a rough, matte surface may be considered the opposite of a smooth, silvery one. Other antonyms for "more silvery" may include tarnished, rusty, or corroded, as these terms imply a lack of shine or luster. Ultimately, the antonyms for "more silvery" depend on the context and the nature of the object being described.