Definition
Describing a young person who demonstrates maturity in thought, speech, or behavior that is beyond their age.
Although he is only 10 years old, he has a level of maturity and understanding beyond his years; he truly has an old head on young shoulders.
She impressed everyone with her sharp business acumen and shrewd decision-making, demonstrating a wise head on young shoulders.
Despite being a young team member, he always provides thoughtful insights; he definitely has a wise head on young shoulders.