Which term describes the ability to move quickly and easily?

The term that describes the ability to move quickly and easily is agility. Agility refers to the capacity to change direction rapidly and control your body's movements effectively, allowing for quick responses and adaptability during physical activities. It is a crucial component in many sports and physical activities, where athletes must navigate complex movements and sudden changes in direction without losing speed or control.

Coordination, while related, refers to the ability to use different parts of the body together smoothly and efficiently, rather than focusing on speed or quickness in movement. Balance involves maintaining stability and equilibrium, which can be important in certain movements but does not specifically relate to quickness or ease of movement. Strength refers to the ability of muscles to exert force, which plays a role in power and endurance but does not capture the essence of quick and agile movements. Thus, agility is the most appropriate term that encapsulates the ability to move quickly and easily.