Gray-drab is commonly used to describe something dull, drab or mundane. However, there are several other synonyms that can better describe this concept. Some other words that can be used instead of gray-drab include: lackluster, unremarkable, uninspiring, unexciting, mundane, dreary, plain, boring, colorless, lifeless, and monotonous. All of these words can be used to describe anything that lacks brightness or excitement and doesn't grab attention. Using varied synonyms is particularly useful in written or spoken communication where repeated use of the same word can make the narrative less engaging. By using more descriptive language, you can make your communication more interesting and engaging.