1. in a manner that occurs or happens in turns; by alternating between two or more things

Examples

• The two dancers moved alternatingly across the stage, one leading while the other followed.
• The lights flashed alternatingly between red and blue throughout the night.
• She alternatingly smiled and frowned as she read the mixed reviews of her work.
• The team members spoke alternatingly during the presentation, each covering their assigned section.
• The temperature rose and fell alternatingly as the weather system moved through the region.