The state of being full of energy. According to the personal database, this is an adjective to describe the state of being full of passion and vitality when you are young. This word is usually used to describe the enthusiasm and vitality of young people, suggesting that they are full of ambition and impulse in adolescence, full of the spirit of exploration and adventure. It can also refer to the best time in life, emphasizing the importance of cherishing youth and pursuing self-realization and growth.