The phrase "metal-looking" refers to an object or material that has the appearance of metal. Some synonyms for this could be metallic, shiny, reflective, silver-looking, or even chrome-like. Other options might include steel-like, metallic-esque, or metallic-toned. These synonyms can be used in various contexts, such as describing the appearance of a car or a piece of jewelry. It's important to consider the nuances of each word to ensure it accurately describes the intended meaning. For instance, "chrome-like" may imply a specific shade of silver, while "reflective" could refer to a broader range of metallic appearances.