"Three-wheeled" is a descriptive term used to refer to any vehicle or mode of transportation that has three wheels. However, if you're looking to add a bit of variation to your writing, there are a few synonyns you can use instead. For example, you could refer to a "trike", a "three-wheeler", or a "three-wheeled vehicle". Each of these terms clearly describes the same type of transportation with a slightly different emphasis. A "trike", for example, might be used to describe a more leisurely form of transport, while "three-wheeled vehicle" sounds more formal and technical. Regardless of which synonym you choose, make sure it accurately captures the essence of what you are trying to describe!