An adjustable propeller can come in handy when it comes to controlling the performance of boats. But what other words can be used to describe such a beneficial device? They include a tweakable propeller, modifiable propeller, alterable propeller, adaptable propeller, variable propeller, customisable propeller, and flexible propeller. Each of these words conveys the ability of the propeller to be altered as needed so that the boat can overcome varying water conditions, speed requirements, and fuel efficiency needs. The right synonyms allow the adjustable propeller to be appreciated for its versatility and usefulness in boats as people discuss superior solutions.