1. moving with a smooth wavelike motion; rising and falling in waves

Examples

• The undulant hills stretched to the horizon.
• She moved with an undulant grace across the dance floor.
• The undulant motion of the wheat field was mesmerizing.
• The snake’s undulant movement through the grass was barely visible.
• The undulant surface of the lake reflected the moonlight.
• His undulant handwriting was difficult to read.