Knackered is a common term that means being very tired and exhausted. The opposite of knackered is rejuvenated, energetic, and refreshed. When a person is not knackered, they are alert, lively, and active. They can easily carry out various tasks, accomplish goals, and enjoy their daily routine. Conversely, when someone is knackered, they feel drained, depleted, and often struggle to remain active. In order to combat fatigue, it is important to get ample rest and sleep, exercise regularly, practice stress-relieving techniques, and maintain a healthy diet. By doing so, you can ensure that you stay refreshed and energized throughout the day.