What is sophmoric?

Sophomoric is an adjective used to describe behavior, attitudes, or writing that is juvenile or immature, often characteristic of a sophomore, or second-year student in high school or college. Sophomoric behavior often involves showing off, being excessively loud or obnoxious, or engaging in pranks or childish humor. It can also refer to works of art or writing that are unrefined, unoriginal, or lacking in sophistication. The term is often used negatively to criticize someone who is perceived as being naive or unprofessional.