The phrase "young adult" is a term used to describe individuals who are typically between the ages of 18 and 35. However, there are several other synonyms for the term that can be used interchangeably. Some of these synonyms include "adolescent," "youthful," "juvenile," "teenager," or "emerging adult." Depending on the context in which these terms are used, they can refer to a person's age, level of maturity, or stage of life. Regardless of the specific term used, it is important to remember that these individuals are navigating a unique period of transition as they move from adolescence into adulthood.