Callowness is a term used to describe the lack of maturity and experience of a young person. IGNORANCE, naivete, INNOCENCE, FRESHNESS, NEWNESS, INEXPERIENCE, ADOLESCENCE, PUBERTY, YOUTH, and ineperence are all related terms that can be used to describe callowness. IGNORANCE is a lack of knowledge or understanding, naivete is a lack of experience or wisdom, INNOCENCE is a lack of knowledge of evil or wrongdoing, FRESHNESS is a lack of familiarity or weariness, NEWNESS is a lack of familiarity or experience, INEXPERIENCE is a lack of experience or knowledge, ADOLESCENCE is the period between childhood and adulthood, PUBERTY is the period of physical development from childhood to adulthood, YOUTH is the period between childhood and adulthood, and ineperence is a lack of experience or knowledge.