Longevity/lɔːnˈdʒevəti/ Definition 1 of 4Pro Tip 1/3General Meaning Refers to the duration of life or existence of things. The oak tree in our backyard is admired for its longevity. Pro Tip 2/3Positive Connotation Often suggests a life or existence that is not just long, but also rich or beneficial. Thanks to her healthy lifestyle, she enjoyed great longevity. Pro Tip 3/3Beyond Age Can imply wisdom or experience accumulated over time, not just age. His longevity at the company made him a valuable mentor to new employees.