The antonyms for the word "more energyless" are plenty. Some of them are energetic, active, vigorous, lively, dynamic, powerful, strong, robust, indefatigable, and high-spirited. These words refer to a state of being active, full of life and vitality, and having the ability to sustain physical or mental effort for a long time. When we feel energetic, we are motivated to take on challenges and pursue our goals with vigor. Energetic people are known for their enthusiasm, drive, and resilience. In contrast, when we feel lackadaisical or lethargic, we may find it hard to focus, be productive, or accomplish anything meaningful. Therefore, it is important to find ways to stay energized and maintain a healthy balance of physical activity, rest, and nutrition.