Dumbfound

To shock or surprise someone so much that they can't think of anything to say or do next, like when you hear great news that leaves you speechless.

Examples

• When the teacher announced that we would have a surprise field trip to the science museum, my classmates and I were so excited that we were completely dumbfound, unable to contain our joy.
• During the championship game, the opposing team scored an unbelievable goal at the last second, leaving our players and fans dumbfound, as we all struggled to comprehend what had just happened.
• I was dumbfound when I discovered that my quiet friend, who always sat at the back of the class, had written an incredible story that won first place in the school writing contest.

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