童顔

1. Origins, structure, and basic meaning

• Structure: 童顔, read どうがん, is a noun meaning a childlike or youthful-looking face.
• Basic usage: It is used to describe someone whose face makes them look younger than their actual age.
  • 彼は童顔なので実際の年齢より若く見える。

2. Common pitfalls and similar expressions

• Facial appearance versus actual age
  • 童顔の人 describes facial appearance, while 若い人 usually describes actual youth. A youthful face does not by itself establish a person's age or an immature personality.