The word "zesty" is an adjective that describes something as being lively, spirited or full of energy. It often implies a sense of excitement and enthusiasm, and can be used to describe people or things that are vibrant, dynamic and engaging. In terms of flavor, the term "zesty" is commonly associated with foods that have a tangy, spicy or citrus-like taste - such as lemon or lime juice - which adds an extra burst of flavor to dishes.