1. in a manner characterized by wide openings or gaps; with mouth or eyes wide open
Usage: often used to describe physical appearance or expression of surprise, shock, or wonder

Examples

• The child stared gapingly at the magician's trick.
• She watched gapingly as the acrobat performed the daring stunt.
• He stood gapingly before the enormous painting in the museum.
• The audience listened gapingly to the shocking announcement.
• The fish's mouth hung gapingly open as it gasped for water.