Agility/əˈdʒɪləti/ Definition 1 of 4Pro Tip 1/3Physical Movement Use 'agility' when describing someone's ability to move their body swiftly and gracefully. The gymnast's agility was evident in her flawless routine. Pro Tip 2/3Quick Reflexes Agility often implies quick reflexes, which can be essential in sports or physical activities. The goalkeeper's agility saved the match. Pro Tip 3/3Not Always Physical 'Agility' can also refer to quick thinking, not just physical movement. Solving puzzles can improve your mental agility.