adjective
1. in a state of mental numbness especially as resulting from shock
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he had a dazed expression on his face
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lay semiconscious, stunned (or stupefied) by the blow
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was stupid from fatigue
• Similar to: ↑confused
2. as if struck dumb with astonishment and surprise
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a circle of policement stood dumbfounded by her denial of having seen the accident
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the flabbergasted aldermen were speechless
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was thunderstruck by the news of his promotion
• Syn: ↑dumbfounded, ↑dumfounded, ↑flabbergasted, ↑thunderstruck, ↑dumbstruck, ↑dumbstricken
• Similar to: ↑surprised
Useful english dictionary. 2012.