dumbfounded

• For a moment the usher was dumbfounded, then he rallied You will all go to your beds, at once," he said. —  Held Fast For England A Tale of the Siege of Gibraltar (1779-83)
• I cried in utter amazement--dumbfounded by his impudence Will you settle one thousand pounds upon her, to keep her out of her grave Not one penny!" —  A Bid for Fortune or Dr. Nikola's Vendetta
• Nabíl was dumbfounded, and said: “How life-giving, to a true believer, is this prison air For some time, ‘Abdu’r-Raḥím lived in the neighborhood. —  Memorials of the Faithful
• Then the moths were completely dumbfounded, and gave up the honey business in despair But the insect to which the epithet of cunning may be best ascribed, is, I think, the flea. —  Round-about Rambles in Lands of Fact and Fancy
• Baron stood dumbfounded, a picture of helpless anxiety I oughtn't to have driveled about that accident," he said. —  An Unpardonable Liar

Used in the Same Context