1. in a manner without speaking; silently due to being unable or unwilling to speak

Examples

• She stared speechlessly at the unexpected gift.
• He stood speechlessly in the doorway, shocked by what he saw.
• The audience watched speechlessly as the magician performed the impossible trick.
• After hearing the news, she sat speechlessly for several minutes.
• The children gazed speechlessly at the enormous birthday cake.
• He looked speechlessly at his test score, unable to believe his eyes.