Agile means able to move quickly and easily, with grace and control. A gymnast performing a floor routine is agile, smoothly transitioning from flips to cartwheels to splits. A soccer player who can suddenly change direction while dribbling shows agility. Watch a cat chase a toy, and you'll see agile movement: quick starts, sharp turns, perfect balance.

An agile person moves with intelligence and purpose, adapting their body to whatever the situation requires.

Being agile also applies beyond physical movement. An agile mind can quickly shift between different types of problems, like a student who smoothly transitions from solving math equations to writing a creative story. Companies describe themselves as agile when they can quickly adapt to change, like a lemonade stand that notices customers want strawberry flavor and adjusts its recipe by the next day.

The opposite of agile is clumsy or rigid: someone who moves stiffly or can't adjust when circumstances change. Athletes train to become more agile through practice and conditioning, but mental agility also develops with experience and curiosity.