childishness

Childishness is the quality or state of being childish: behavior or attitudes that are immature, self-centered, or lacking in adult-level self-regulation. It can describe actions typical of children, and when applied to adults it often carries a pejorative judgment of immaturity. The word derives from the word child and the suffix -ish, indicating a characteristic similar to that of a child.

In developmental terms, childishness is expected in early life as children acquire emotional regulation, perspective-taking, and impulse control. As people mature, these capacities typically improve. Persistent childishness in adulthood can signal underlying factors such as difficulties with executive function, attachment patterns, or mental health concerns, though it can also coincide with positive traits like playfulness, creativity, and spontaneity when not carried to excess.

Cultural and social contexts shape what is considered childish. Norms about play, humor, responsibility, and self-control vary across societies and situations. The distinction between childish and childlike is common in language: childish often implies immaturity or selfishness, whereas childlike conveys innocence, wonder, and openness.

Examples of childish behavior include tantrums, impulsive or reckless acts without regard for consequences, name-calling, excessive blaming, or stubborn avoidance of accountability. Such behaviors can hinder relationships, learning, and work performance. Addressing childish tendencies typically involves developing emotional regulation, empathy, perspective-taking, and clearer communication, while preserving constructive playfulness and curiosity.