1. controlled in behavior or expression; not excessive or extreme
2. held back or prevented from moving freely
3. showing self-control and avoiding strong emotional display

Examples

• Her restrained response to the criticism impressed everyone.
• The prisoner sat with his hands restrained behind his back.
• The decorator chose a restrained color palette of whites and grays.
• Despite his anger, he remained restrained throughout the meeting.
• The dog was restrained by a strong leash during the walk.
• She gave a restrained performance that was both powerful and subtle.
• The restrained elegance of the room made it feel peaceful.