1. having a wavy or undulating pattern
Usage: heraldry

Examples

• The coat of arms featured an undy line across the shield.
• The heraldic design included an undy border in blue and gold.
• Medieval banners often displayed undy patterns to represent water.
• The family crest showed an undy division between the upper and lower sections.
• In heraldry, an undy line creates a wave-like visual effect.