Nimbler is an adjective used to describe someone who is quick and light in their movements, mentally or physically. It is often associated with agility and the ability to react to situations quickly. Synonyms for nimbler include lithe, fleet, agile, swift, and spry. These words all convey a sense of grace and ease in movement, whether it is physical or mental. They are often used to describe athletes, dancers, and performers who move with a certain finesse and precision. Additionally, nimbler can also be used to describe someone who is mentally nimble, meaning they are quick-witted and able to think on their feet.