acting one's age

Behaving suitably mature

Acting one's age means behaving in a manner considered appropriate for someone of your years, typically invoked when someone—usually a child or teenager—is being immature or silly.

The phrase almost always appears in the imperative as a mild rebuke: Act your age!

Adults occasionally receive this admonition too, particularly when behaving childishly or irresponsibly.

The underlying assumption is that maturity should increase with years, though what constitutes age-appropriate behavior varies by culture and context.

Related

propriety · emotional regulation · authenticity · boundaries · social norms · self-concept · stereotypes · appropriateness · childishness · inner child · young at heart · old soul · customs · self-discipline · cognition · conformity · peer pressure · maturity

Opposites
behavioral maturity alignment

acting one's ageacting out

Expressing distress behaviorally

regressing · Peter Pan syndrome · arrested development · making a scene · acting the fool

direction of age-inappropriate behavior

acting one's agegrowing up too fast

second childhood · parentification · midlife crisis · lost youth

Family

acting, acted, acts, action, actions, active, actor, actors, actress

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G