The term youthy means to have the qualities or characteristics of a young person. Some synonyms for youthy include youthful, energetic, vibrant, lively, and spirited. These words all convey a sense of vitality and exuberance, which are typical of young people. Other synonyms for youthy include dynamic, vigorous, animated, and fresh. All of these words suggest a sense of newness and excitement, which are often associated with youthfulness. Ultimately, the word youthy and its synonyms represent a desire to remain young at heart, and to maintain a sense of vigor and enthusiasm throughout our lives.