柔和

1. Origins, structure, and basic meaning

• Structure: 柔和 (にゅうわ) describes a gentle, mild face or manner. The examples use an attributive form and a resulting change.
• Basic usage: A teacher addresses a child with a gentle expression; a grandfather's features grow milder with age.

2. Common pitfalls and similar expressions

• Gentle expression shown to someone and facial change over time
  • 柔和な表情 is an existing quality; 柔和になった is change of state. These contexts concern human appearance, not material softness.