心智年龄 (xīn zhì nián líng) — Mental age
Translating to 'mental age', this term is often used to assess how mature or childish someone behaves compared to their actual age, frequently in a humorous or lighthearted context.
Example Usage
他虽然三十了，心智年龄却只有十六。
Although he is thirty, his mental age is only sixteen.
Cultural Context
Used in playful banter among friends.
Category: love-friends