undulation

The undulation of the ocean waves was mesmerizing.

The undulation of the landscape made it difficult to drive on the winding road.

The undulation in her voice conveyed a sense of sadness.

The undulation of the fabric gave the dress an elegant flow.

The undulation of the music created a sense of movement and rhythm.

The undulation of the sand dunes was breathtaking.

She danced with grace, moving in perfect undulation with the music.

The undulation of emotions in the film kept the audience engaged.

The undulation of the road caused cars to slow down for safety.

The undulation of the fields created a beautiful pattern from above.