"Tinged with gray" is a phrase used to describe something that is partially dull or faded. However, there are several synonyms that can be used to convey the same meaning in different ways. For example, "ashen" can describe something that looks pale or dull because it lacks color, while "drab" can be used to indicate something that looks dull or lifeless. Additionally, "dusty" can suggest that something is covered with a layer of gray or brownish particles, while "silvered" can describe something that has taken on a metallic hue. Ultimately, using different synonyms can help to add variety and nuance to one's writing, while still conveying the same core meaning.