1. to be more important or impressive than something else, making it seem less significant
2. to cast a shadow over something; to block light from reaching something

Examples

• The scandal overshadowed his many achievements.
• Her brilliant performance overshadowed the rest of the cast.
• The tall building overshadows the small park next to it.
• Bad weather overshadowed their vacation plans.
• The mountain overshadows the entire valley below.
• His success was overshadowed by his brother’s fame.
• The trees overshadow the garden in the afternoon.