Semidiaphanous is a term that is often used to describe a material or object that is partially transparent. However, there are several other words that can be used to convey the same meaning. Some of the common synonyms for semidiaphanous include translucent, semi-transparent, semi-opaque, and partially clear. Other synonymous words that can also be used in place of semidiaphanous are hazed, foggy, and misty. These words are typically used to describe materials such as fabrics, glass, or other transparent objects. Using synonyms is an excellent way to add variation and depth to your writing, and choosing an appropriate word can help you to achieve the desired effect in your work.